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->'''Charlotte:''' Plaything? I should say not. It is my egg sac, my ''magnum opus''.\\
'''Wilbur:''' I don't know what a magnum opus is.\\
'''Charlotte:''' That's Latin. It means "great work." This egg sac is my great work -- the finest thing I have ever made.
-->-- ''Literature/CharlottesWeb''

Welcome to the top of the mountain, and to the pearly gates beyond which only the best are permitted. This trope represents the pinnacle to which anyone who produces a work of art dreams of reaching. The term "Magnum Opus" is bestowed on any work generally accepted to be a masterpiece, as well as the greatest work of its creator, forever cementing them as someone of exceptional talent.

Any given writer, artist, musician, etc. may produce many works in his/her life time, and many of these works may be great; but the greatest, and most important, well known, and influential of these works is their Magnum Opus. For the purposes of this trope page, it is probably best to consult TheOtherWiki's definition of "Masterpiece": "''a creation that has been given much critical praise, especially one that is considered the greatest work of a person's career or to a work of outstanding creativity, skill or workmanship.''" This trope is meant to recognize both the work and its creator, so any work of enough quality and critical acclaim is welcome. If you've ever heard a work referred to as a "classic" or especially a "masterpiece," chances are it belongs here.

Of course, defining what is or isn't someone's true masterpiece is far from easy in some cases. For some creators, there is little controversy, because [[OneHitWonder they've only ever created or are only known for one particular work]], which happens to be a masterpiece. Others have such a large body of work that there is bound to be more than one candidate for the title. There may be [[BrokenBase heavy debate regarding multiple works as to which is their true Magnum Opus]]. As usual there may be CriticalDissonance at play. The general public likes one work, while critics or fellow creative artists in the field prefer another. Even the creator himself may not always be the best judge of his own work. He/She may prefer his later work, because he/she [[GrowTheBeard grew the beard]] as an artist, perfected his/her skills and had more independence, away from ExecutiveMeddling, while his fans may feel that his/her earlier work is way better (FirstInstallmentWins). A common problem that happens to every artist is that, in their eyes, their best work is the one they spent the most time and effort on. As history has proven time and time again, this isn't always the case. For more examples on that subject we refer to the MagnumOpusDissonance page.

A few simple reminders to avoid endless personal and subjective debates or other problems:

1) Please note that although there may be some overlap, this is not to be confused with OneHitWonder, which is when a creator is only known for one work, and that page mostly has music examples. This isn't OneBookAuthor, either. Most of these also aren't [[ToughActToFollow Tough Acts To Follow]], which is when any other work of a creator's is compared disfavorably to their opus; but again, they can be.

2) Also note that there may or may not be overlap with the creator's BreakthroughHit. While a few creators' breakthroughs are often cited to be their greatest work, most creators will create their breakthrough first, then eventually go on to produce their MagnumOpus.

3) Some of the works considered a MagnumOpus are often epic and ambitious in scale, length, stature or in content. Though this isn't always the case.

4) Merely listing a work as a ''magnum opus'', because you happen to like it, despite everyone else disliking it or not rating it that high is a totally different discussion and should not be held here. Even if your own personal circle of friends or a group of Internet forum contributors like it: this still doesn't prove its status as a ''magnum opus''. Consult encyclopaedias, art critics, professional reviews, documentaries or check the popularity of a certain work among the general public, despite it already being decades or even centuries old.

5) Before commenting on works that are already cited on this page as a creator's MagnumOpus that you don't agree with, please remember that the main page should be kept as objective as possible, with a minimal number of {{Justifying Edit}}s. If there is a work cited here that you don't agree with or a work you feel has been neglected, please mention it first on the Discussion Page. Finally, The best way to decide whether or not a work is a Magnum Opus is by asking the question: "Is this work generally defined as a masterpiece, and as the greatest achievement of its creator's career?"

Also not to be confused with [[BloomCounty a certain penguin]]. Contrast DethroningMomentOfSuck and FallenCreator.
----
!!Examples:

[[foldercontrol]]

[[folder:Actors]]
* Creator/AbbottAndCostello: Their most popular and critically acclaimed comedy routine is the ''Main/WhosOnFirst'' sketch.
* Creator/MarlonBrando: Though all of his roles are interesting Brando's best acting, according to many, was in ''Film/OnTheWaterFront'', ''Film/AStreetcarNamedDesire'' and ''Film/TheGodfather''. He won Academy Awards for both the first as the third film, one of the few times that audience and critics didn't dispute that the Oscar was well deserved.
* Creator/CheechAndChong: Their best film is widely considered to be ''Film/UpInSmoke''.
* Creator/BetteDavis: ''Film/NowVoyager'', ''Film/AllAboutEve''.
* Creator/JamesDean's most well beloved film is ''Film/RebelWithoutACause''.
* Creator/AnthonyHopkins: Hannibal Lecter in ''Film/SilenceOfTheLambs'', even the more cartoonish portrayals in the atrocious sequels couldn't destroy this performance.
* Creator/LouisDeFunes: ''Film/LAileOuLaCuisse'' and ''Film/TheMadAdventuresOfRabbiJacob''.
* Creator/WCFields: ''Film/ItsAGift'' and ''Film/TheBankDick''.
* Creator/BorisKarloff: Nobody will deny that his performance of Frankenstein's Monster is his most iconic and magnificent role.
* Creator/LaurelAndHardy: ''Film/SonsOfTheDesert'', Film/TheMusicBox and/or ''Film/WayOutWest''.
* Creator/BruceLee: ‘Film/EnterTheDragon’
* Creator/BelaLugosi: Dracula in the eponymous 1931 film.
* Creator/HaroldLloyd: ''Film/SafetyLast''.
* Creator/RobertDeNiro: De Niro surprised everybody with his dedication to play the lead role in Film/RagingBull where he even put on several pounds to play the boxer in later life, when obesity took his claim. He won his second Academy Award for this mesmerizing role.
* Creator/TheMarxBrothers: ''Film/ANightAtTheOpera'' and ''Film/DuckSoup''.
* Creator/ArnoldSchwarzenegger: Though Arnold's films are mostly lightweight popcorn entertainment and his acting nothing to write home about friend and foe agree that his performance of a cyborg in Franchise/TheTerminator is unsurpassed and couldn't have been played better by anyone else.
* Creator/PeterSellers: His most impressive and versatile acting performance is considered to be in ''Film/DrStrangelove'', where he plays three different characters.
* Creator/TheThreeStooges: ''A Plumbing We Will Go''.
* Creator/HeathLedger: Joker in ''Film/TheDarkKnight''.
[[/folder]]

[[folder:Anime & Manga]]
* ''Manga/JoJosBizarreAdventure'' for HirohikoAraki.
* ''Anime/MobileSuitGundam'', ''Anime/MobileSuitZetaGundam'' or ''Anime/TurnAGundam'' for YoshiyukiTomino.
* ''Manga/DragonBall'' for AkiraToriyama.
* ''Manga/SailorMoon'' for Creator/NaokoTakeuchi.
* ''Anime/NeonGenesisEvangelion'' for Creator/HideakiAnno.
* ''{{Devilman}}'' and ''MazingerZ'' for GoNagai.
* ''Anime/YuGiOh'' for Kazuki Takahashi.
* ''Manga/RoseOfVersailles'' for RiyokoIkeda
* ''Anime/CowboyBebop'' for ShinichiroWatanabe.
** Bebop's soundtrack (especially [[CrowningMusicOfAwesome that of the movie]]) is this for YokoKanno, although ''{{Escaflowne}}'', ''WolfsRain'' and ''GhostInTheShellStandAloneComplex'' certainly come close.
* ''Manga/{{Akira}}'' is widely considered to be KatsuhiroOtomo's greatest work. It is certainly his most famous.
* ''Manga/FullmetalAlchemist'' for Hiromu Arakawam with the [[Anime/FullmetalAlchemist 2003 anime adaptation]] being this for director Seiji Mizushima.
* The anime adaptation of ''Anime/{{Pokemon}}'' for the late Takeshi Shudo, who seemed to have put his heart and soul into the series to make it entertaining for all ages despite ExecutiveMeddling conflicts. Or at least the Kanto through Johto era, which is the only series of the show that he personally worked on.
* ''RevolutionaryGirlUtena'' for KunihikoIkuhara.
* ''GhostInTheShell'' is always the first film that comes up when MamoruOshii's name is mentioned.
* ''Manga/{{Bleach}}'' for Creator/TiteKubo.
* ''{{Berserk}}'' for Creator/KentaroMiura.
* ''[[Manga/SazanEyes 3 x 3 Eyes]]'' for Yuzo Takada.
* Picking one for OsamuTezuka is impossible. ''Manga/AstroBoy'' is his most famous work, ''Manga/{{Phoenix}}'' is his personal favorite, ''Manga/BlackJack'' was once voted the second greatest manga of all time, right after ''BananaFish'', so it's just not possible.
* ''Anime/PuellaMagiMadokaMagica'' is both this and a BreakthroughHit for GenUrobuchi.
* ''Manga/OnePiece'' for Creator/EiichiroOda.
* ''Manga/{{Toriko}}'' for Mitsutoshi Shimabukuro
* ''LightNovel/{{Baccano}}'' and ''{{Durarara}}'' for Ryohgo Narita.
* ''Manga/{{Naruto}}'' for Masashi Kishimoto.
* ''Anime/MobileFighterGGundam'', ''GiantRobo'' or ''ShinMazinger'' for Yasuhiro Imagawa, although the first is undoubtedly his most famous one.
* DetectiveConan for Gosho Aoyama.
* ''Manga/FushigiYuugi'' will probably always be Creator/YuuWatase's most famous and beloved manga, though if we're talking pure quality writing and art ''Manga/AyashiNoCeres'' is most probably her greatest creation.
* ''Manga/RurouniKenshin'' for NobuhiroWatsuki.
* ''SoulEater'' for AtsushiOhkubo.
* ''Anime/CodeGeass'' for Goro Taniguchi.
* ''Anime/FangOfTheSunDougram'' or ''Anime/ArmoredTrooperVotoms'' for Ryosuke Takahashi.
* ''BlackButler'' for Yana Toboso.
* ''Manga/{{Monster}}'' for Creator/NaokiUrasawa. ''Manga/TwentiethCenturyBoys'' is this for him too.
* ''Anime/NeonGenesisEvangelion'' for StudioGainax. Other potential candidates are ''Anime/TengenToppaGurrenLagann'', ''PantyAndStockingWithGarterbelt'', and ''Anime/{{FLCL}}''.
* ''Manga/YuYuHakusho'' or ''Manga/HunterXHunter'' for YoshihiroTogashi.
* ''Manga/FistOfTheNorthStar'' for Tetsuo Hara and Buronson.
* ''OyasumiPunpun'' for Inio Asano.
[[/folder]]

[[folder:Artists (Painters, sculptors, graphic artists)]]
* Also more contemporary, prepare for some {{Squick}} in reading about Vito Acconci's performance masterpiece [[http://en.wikipedia.org/wiki/Seedbed_(performance_piece) Seedbed]].
* Francis Bacon: ''Screaming Popes''
* Matthew Barney's ''Cremaster Cycle'' series of films.
* Creator/HieronymusBosch. ''The Garden of Earthly Delights''.
* Creator/SandroBotticelli: ''La Primavera'' (best known for ''The Birth of Venus'' centerpiece).
* Creator/PieterBruegelTheElder. ''Peasant Wedding'' is generally considered his masterpiece, because of its iconic stature. Other often cited works are ''Peasant Dance'', ''TheBlindLeadingTheBlind''.
* Creator/MichelangeloBuonarroti. His ''David'' statue and the ''Sistine Chapel'' ceiling painting are generally considered his magnum opus and a high point in human art. Another candidate is his ''Pietà'' statue.
* John Constable: ''The Hay Wain''.
* Creator/SalvadorDali: ''The Persistence of Memory''.
* Jacques-Louis David: ''The Death of Marat''.
* Creator/MarcelDuchamp: His magnum opus was a piece simply known as "''Fountain''," a porcelain urinal he put on a pedestal in a gallery and signed with a marker as "R. Mutt". The piece was concept heavy, meant to challenge the value of art and the importance of the gallery system. The big idea behind the piece being, "If something is in an art gallery, does that make it art?"
* Creator/LeonardoDaVinci: ''Mona Lisa'' and ''The Last Supper''.
* The ''[[http://en.wikipedia.org/wiki/Sagrada_Familia Temple Expiatori de la Sagrada Familia]]'' of Barcelona is often considered the masterpiece of the renowned Spanish architect Antoni Gaudi. The intricacy and scale of the cathedral was so immense that not only was it incomplete at the time of Gaudi's death (despite being started some forty years before he died, and devoting the last fifteen years of his life to it entirely), but remains incomplete to this day. By the time it is expected to be finished, it will have been built over the course of about 140 years.
* Creator/FranciscoDeGoya: ''The Third of May, 1808''.
* Theodore Géricault: ''The Raft of the "Medusa''''.
* Creator/ElGreco: ''The Burial of the Count of Orgaz''.
* Creator/EdwardHopper: ''Nighthawks''.
* Creator/{{Hokusai}}: ''The Great Wave off Kanagawa''.
* Creator/RoyLichtenstein: ''Whaam''.
* Edouard Manet: ''Le Déjeuner Sur L' Herbe''.
* Masaccio's frescoes for the Barancacci Chapel, his greatest works and considered by some the principal classroom of the Florentine School.
* Claude Monet: ''Impression, soleil levant'' and his ''Water Lelies'' series.
* Edvard Munch: ''The Scream''.
* Creator/PabloPicasso: ''Guernica''
* Creator/{{Raphael}}'s ''"School of Athens"''.
* Pierre-August Renoir: ''Bal au Moulin de la Galette''.
* Creator/AugusteRodin: ''The Thinker'' and ''The Kiss''.
* Creator/PeterPaulRubens: ''The Elevation of the Cross'' and ''The Descent From The Cross''.
* Creator/GeorgesSeurat: He died unfortunately young, but he (the inventor of pointillism) shook up the art world with his stylistically inventive and politically controversial ''Sunday Afternoon on the Island of La Grande Jatte''.
* Creator/JohannesVermeer: ''Girl With A Pearl Earring'' and ''The Milk Maid''.
* Creator/VincentVanGogh: His artistic impact only occured after death. In terms of sales and fame ''The Sun Flowers'' is often cited as his masterpiece. Another strong contender is ''Starry Night'', which remains one of the most influential and recognizable paintings in the world.
* Creator/RembrandtVanRijn: ''The Nightwatch''. Among the general public and art fans ''The Jewish Bride'' and ''The Oath Of Julius Civilis'' have also gained in reputation.
* Diego Velazquez: ''Las Meninas''.
* Creator/AndyWarhol: His ''Campbell Soup'' painting.
* James Mcneill Whistler: ''Portrait of the Artists' Mother''.
[[/folder]]

[[folder:Comic Strip Artists]]
* ''GreenLantern[=/=]ComicBook/GreenArrow'' for Neal Adams and Denny O'Neil. Also, their run on ''Franchise/{{Batman}}'', which made the character a darker figure again (after the campiness inspired by [[Series/{{Batman}} the Adam West series]]) and introduced Ra's al Ghul.
* Brian Azzarello and Eduardo Risso: ''Comicbook/OneHundredBullets''.
* Creator/CarlBarks: His ''Uncle Scrooge'' stories. The story ''Lost in the Andes'' (the one about the square eggs) is widely regarded as such a classic that a reprint of all Barks' comics in the 2000s even started off with this particular adventure.
* Creator/BrianMichaelBendis: ''Comicbook/{{Alias}}'' or ''Comicbook/{{Daredevil}}'' , although ''ComicBook/UltimateSpiderman'' is well on its way of taking the top spot.
* Berkeley Breathed: ''BloomCounty''
* Creator/EdBrubaker's run on ''ComicBook/CaptainAmerica'' has been hailed as the best ever on the title, so much so that it earned him MyRealDaddy status. ''Comicbook/{{Sleeper}}'' might be a better candidate, as it is quite representative of his body of work.
* [[Creator/KurtBusiek Kurt Busiek]] and Alex Ross (again) and solo for Kurt Busiek - ''ComicBook/AstroCity'': ''Comicbook/{{Marvels}}''.
* Creator/ChrisClaremont will always be remembered as the man who singlehandedly turned ''Comicbook/{{X-Men}}'' from a barely-remembered {{Marvel}} team comic to one of its premier titles. For a more specific Magnum Opus, look to either ''ComicBook/DaysOfFuturePast'' or ''Comicbook/TheDarkPhoenixSaga''.
* Creator/RobertCrumb: His work between 1965 and 1969 remains the most popular among fans, though others feel that from the 1970s on his autobiographical comics were far more personal and interesting.
* Creator/WillEisner: ''ComicStrip/ContractWithGod''
* WarrenEllis' ''Comicbook/{{Transmetropolitan}}''.
* GarthEnnis' ''Comicbook/{{Preacher}}''.
* Creator/AndreFranquin: The stories he wrote and drew for ComicStrip/SpirouEtFantasio are generally seen as the best albums in the series. His personally created masterpiece is ComicStrip/GastonLagaffe.
* Creator/NeilGaiman: ''Comicbook/TheSandman''.
* Creator/ReneGoscinny: The stories he wrote for ComicStrip/{{Asterix}} are generally seen as his crowning masterpiece and the best ''Asterix'' albums ever. One specific ''Asterix'' album that is regarded the best installment in the series is ''Asterix in Britain''.
* Creator/{{Herge}}: His ComicStrip/{{Tintin}} series are highly regarded among comic strip fans. Specific Tintin albums considered his magnum opus are ''The Blue Lotus'', ''The Secret of the Unicorn'' and ''Tintin in Tibet'', the finally two being his personal favorites too.
* Edgar P. Jacobs: ComicStrip/BlakeAndMortimer. The most classic and admired album in this series is ''The Yellow "M"'', voted 'Best Comic Strip of the 20th Century'' in 1999 by European comic strip critics.
* Creator/GeoffJohns' work on ''Comicbook/GreenLantern'' is developing into this for him. The highlights of this run are the epics ''Comicbook/SinestroCorpsWar'' and ''Comicbook/BlackestNight''.
* Joe Kelly: ''Comicbook/{{Deadpool}}'' his run on 'Pool's first monthly series is undoubtedly his finest work. It made him Deadpool's [[MyRealDaddy real daddy]].
* Creator/JackKirby, it was the ''Comicbook/FourthWorld''.
* Robert Kirkman: ''ComicBook/{{Invincible}}'' for Robert Kirkman, at least if you ask SuperHero fans. For other fans, ''ComicBook/TheWalkingDead''.
* Creator/HarveyKurtzman: The first four years of ''Magazine/MadMagazine'' contain what is generally considered to be his more influential and classic work.
* Creator/StanLee, Creator/SteveDitko and John Romita Sr.: The first run of ''[[Comicbook/{{Spider-Man}} The Amazing Spider-Man]]''.
** Another candidate for both StanLee and JackKirby is the original run of ''ComicBook/FantasticFour'', which single-handedly kickstarted Marvel's SilverAge. The highlight of this run of course, was epic and extremely influential "Galactus Trilogy." ''Comicbook/{{Daredevil}}: Man Without Fear'' for John Romita Jr.
* Erik Larsen: ''TheSavageDragon''
* Alex Maleev: ''Comicbook/{{Daredevil}}'' is his.
* Creator/WinsorMcCay: NewspaperComics/LittleNemoInSlumberland.
* Creator/MarkMillar seems to spark the most debate concerning his superhero stories ''Comicbook/TheUltimates'' and/or ''Comicbook/SupermanRedSon'' and his superhero {{Deconstruction}} ''Comicbook/KickAss''.
* Creator/FrankMiller: ''Comicbook/BatmanTheDarkKnightReturns''
* Creator/{{Moebius}}: Among the general public and fans ''ComicStrip/{{Blueberry}}''. Among critics ''Arzach''.
* Creator/AlanMoore: ''Comicbook/{{Watchmen}}'', which is so highly regarded that it made the ''Time'' magazine list of the top 100 pieces of literature of the 20th century.
* Creator/GrantMorrison's has been up for debate for years. Many readers consider ''Comicbook/AnimalMan'' to be his best work, same for ''ComicBook/AllStarSuperman'', which Morrison himself has referred to as "my own Man of Steel magnum opus." Cases have also been made for ''Comicbook/FlexMentallo'' and ''Comicbook/TheInvisibles''.
* Brian Lee O' Malley: ScottPilgrim.
* ''ComicBook/BlackPanther'' for Creator/ChristopherPriestComics with ''QuantumAndWoody'' being a runner up.
* Creator/HugoPratt: ''ComicBook/CortoMaltese''.
* James Robinson: ''Comicbook/{{Starman}}''
* Keno DonRosa's ''Comicbook/TheLifeAndTimesOfScroogeMcDuck''.
* Charles M. Schulz: ''ComicStrip/{{Peanuts}}'' was his only body of work, but the amount of emotional and philosophical depth and the personal devotion he spent on working half a century without any assistance on this comic strip, well loved by both critics and the general public, makes it his magnum opus.
* ''ComicBook/{{Cerebus}}'' for Dave Sim
* ''Comicbook/{{Bone}}'' for Jeff Smith.
* Marc Sleen: ''ComicStrip/{{Nero}}''.
* Creator/ArtSpiegelman has been producing great comics for decades, but ''ComicBook/{{Maus}}'' is considered his masterpiece for its influence, critical appeal, and exposure within the media.
* Marten Toonder: ''ComicBook/TomPoes'', which is even considered to be literature in the Netherlands.
* Willy Vandersteen: A very productive author and creator of several titles, but ''ComicStrip/SuskeEnWiske'' is still his best work, especially the stories he drew between 1945 and 1959. The Suske en Wiske story generally considered to be his finest story is ''De Schat van Beersel'', which was voted by both fans and critics as his most popular and well beloved classic.
* Brian K. Vaughan: ''Comicbook/YTheLastMan'' by Brian K. Vaughan. Though, once it's finished, ''{{Comicbook/Saga}}'' may yet eclipse it.
* ''ComicBook/KingdomCome'' for Mark Waid and Alex Ross.
* Marv Wolfman and George Perez: ''ComicBook/CrisisOnInfiniteEarths'', though the latter's run on ''Comicbook/WonderWoman'' was also highly acclaimed and influential. The duo's run on ''ComicBook/TeenTitans'' qualifies as well.
** ComicBook/CrisisOnInfiniteEarths is often cited as the single best event to ever come out of Creator/DCComics; it is still the CrisisCrossover to which all others are compared, and to this day all still end up falling short.
[[/folder]]

[[folder:Composers (Classical & Jazz)]]
* George Antheil: ''Ballet Mécanique''.
* Creator/LouisArmstrong: ''West End Blues''.
* Creator/JohannSebastianBach: The ''Mattaüs Passion'', ''Brandenburg Concertos'', ''Cello Suites'' and ''Toccata In Fuga in d. Minor''.
* Samuel Barber: ''Adagio For Strings''.
* Creator/BelaBartok: ''Concerto for Orchestra''. ''Music For Strings, Percussion & Celesta'' is a close second.
* Music/CountBasie: ''One O' Clock Jump'' and ''April in Paris''.
* Creator/LudwigvanBeethoven: His Fifth and Ninth symphony.
** His Seventh Symphony is often seen as his most complete, especially among musicians.
** Some would also give this distinction to his Grosse Fuge for string quartet, which combined sonata, fugue, and variation forms, and somehow still sounds contemporary even today.
* Creator/GeorgesBizet: ''Opera/{{Carmen}}''.
* Music/DaveBrubeck: ''Take Five''.
* Music/JohnCage: ''4' 33"''.
* Music/CabCalloway: ''Minnie the Moocher''.
* Creator/OrnetteColeman: ''The Shape Of Jazz To Come''.
* Creator/JohnColtrane: ''Giant Steps'' and ''Blue Train''.
* Aaron Copland: ''Fanfare For The Common Man''.
* Creator/MilesDavis: ''Music/KindOfBlue''.
* Claude Debussy: ''Prélude à l' après-midi d' un faune'' (''Prélude to the Afternoon of a Faun'').
* Eric Dolphy: ''Out To Lunch''.
* Antonin Dvorak: ''From The New World''.
* Edward Elgar: ''Pomp & Circumstance''
* Music/DukeEllington: ''Moon Indigo'' and ''It Don't Mean A Thing If It Ain't Got That Swing''.
* Creator/GeorgeGershwin: ''Theatre/PorgyAndBess'' and ''Rhapsody in Blue''.
* Creator/GilbertAndSullivan: ''Theatre/TheMikado'' by Creator/GilbertAndSullivan, notable in that rather than being especially "avant garde" it is very accessible. It also had a record setting original run of '''672''' consecutive performances.
* Music/DizzyGillespie: ''A Night In Tunisia''.
* Music/BennyGoodman: ''Sing, Sing, Sing''.
* Edvard Grieg: ''Theatre/PeerGynt''.
* Music/HerbieHancock: ''Music/HeadHunters''.
* G.F. Händel: ''Water Music'' or his ''Messaiah'' oratorio.
* Music/BillieHoliday: ''Strange Fruit''.
* Music/GustavHolst: ''The Planets''.
* Charles Ives: ''The Unanswered Question''.
* Franz Liszt: ''Les Préludes''.
* Creator/GustavMahler: His 8th symphony (owing to the fact that is takes some 600 performers to do justice), his final song cycle Das Lied von der Erde, or his 9th Symphony.
* Olivier Messiaen: ''Turangalila Symphony'', ''Quatuor Pour La Fin Du Temps''.
* Music/GlennMiller: ''In The Mood''.
* Music/CharlesMingus: ''Music/MingusAhUm''.
* Music/TheloniousMonk: ''Round Midnight''.
* Creator/WolfgangAmadeusMozart: His 41st (final) symphony, his Requiem Mass, or The Magic Flute.
* Creator/EnnioMorricone: His score for ''Film/TheGoodTheBadAndTheUgly''.
* Carl Orff: ''Carmina Burana''.
* Modest Mussorgsky: ''Pictures At An Exhibition'' and ''Night On Bald Mountain''.
* Music/CharlieParker: ''Ornithology''.
* Krzysztof Penderecki: ''Threnody For The Victims Of Hiroshima''.
* Giacomo Puccini: ''Madame Butterfly''. Though ''La Bohème'' and ''Turandot'' have also won acclaim.
* Maurice Ravel: ''Boléro''.
* Music/DjangoReinhardt: ''Nuages''.
* Music/SonnyRollins: ''Saxophone Colossus''.
* Music/GioachinoRossini: ''Theater/TheBarberOfSeville''.
* Creator/ErikSatie: ''Trois Gymnopédies''.
* Bedrich Smetana: ''Ma Vlast'' (''My Fatherland'')
* Creator/IgorStravinsky: Theatre/TheRiteOfSpring.
* John Philip Sousa: ''Stars and Stripes Forever''.
* Johann Strauss, Sr.: ''Radetsky March''
* Johann Strauss, Jr.: ''An Die Schöne Blaue Donau'' (''The Blue Danube'')
* Creator/PyotrIlyichTchaikovsky: ''The Nutcracker Suite'' and ''Swan Lake''.
* Toots Thielemans: ''Bluesette''.
* Creator/GiuseppeVerdi: ''La Traviata''.
* Antonio Vivaldi: ''The Four Seasons''
* Creator/RichardWagner: ''Theatre/TheRingOfTheNibelung.''
* Creator/AndrewLloydWebber's ''Theatre/ThePhantomOfTheOpera''. ''Theatre/{{Evita}}'' is often mentioned as well, as is ''Theatre/{{Cats}}''.
* Kurt Weill: ''The Threepenny Opera''.
* Creator/JohnWilliams: Both his musical scores for ''Star Wars'' and ''E.T.'' are equally praised as his masterpieces. His other scores are also popular and iconic, but not with the same universal acclaim by both critics and audience.
* Music/FrankZappa: Out of all his classical pieces the CD ''The Yellow Shark'' does his talent the most justice. The entire orchestra was totally committed into performing his work as perfect as possible.
[[/folder]]

[[folder:Fan Fic]]
* The ''FanFic/TamersForeverSeries'' ('''''ESPECIALLY''''' "Silent Sorrow") for Daneel Rush.
* Considering how many works have come from this group, the MagnumOpus for EyrieProductionsUnlimited is its most well-known (and one of the oldest of Internet-based) fanfics, ''UndocumentedFeatures.'' It's the defining work of fiction for most of the Eyrie crew, most notably head writer Ben "Gryphon" Hutchins.
* Greg Fisk's fanfic series ''[[FanFic/AllThingsProbableSeries All Things Probable]]'' should probably count as his greatest work.
* ''Fanfic/CalvinAndHobbesTheSeries'' is perhaps the culmination of the works of Creator/{{Swing 123}} and Creator/{{Garfieldodie}}. Fitting, since it's a ContinuityCavalcade that still manages to be enjoyable without reading the earlier fics.
* The ''Fanfic/PonyPOVSeries'' for alexwarlorn.
* Kkat's ''Fanfic/FalloutEquestria''
* Website/PlatypusComix author Peter Paltridge has called his ''Franchise/SpiderMan'' {{Fan Web Comic|s}} ''Webcomic/TrueBelievers'' his best comic.
[[/folder]]

[[folder:Fashion]]
* Probably {{CocoChanel}}'s [[PerfumeCommercial Perfume No.5]]. Or her [[LittleBlackDress little black dresses]].
* Christian Dior's 1947 New Look Collection. Most notable is [[http://www.cafleurebon.com/wp-content/uploads/2011/01/new-look-1947-dress.jpg this one]].
* MGM designer Helen Rose's [[FairytaleWeddingDress wedding dresses]] for Creator/ElizabethTaylor in 1950 and Creator/GraceKelly in 1956.
* Princess Diana Spencer's [[FairytaleWeddingDress wedding dress]] designed by the couple Elizabeth and David Emmanuel.
* Madeline Vionnet's concept of [[SexyBacklessOutfit the bias-cut]].
[[/folder]]

[[folder:Film - Animated]]
* {{Creator/Amblimation}}: ''WesternAnimation/{{Balto}}'' for Creator/StevenSpielberg's short-lived animationstudio.
* Creator/RalphBakshi: Though ''WesternAnimation/FritzTheCat'' may be his most famous work overall, both ''WesternAnimation/HeavyTraffic'' and ''WesternAnimation/{{Coonskin}}'' are generally considered to be his best animated features. Bakshi himself favors ''Coonskin''.
* Creator/BradBird has never EVER made a bad film, but the biggest contenders for his Opus are ''WesternAnimation/TheIronGiant'' and ''WesternAnimation/TheIncredibles''. ''Film/MissionImpossibleGhostProtocol'' is another strong contender.
* Creator/DonBluth: Fans and critics alike see ''WesternAnimation/TheSecretOfNimh'' as his magnum opus. All his later work tends to be more hit-and-miss and falls into eternal cult classic debates.
* {{Disney|AnimatedCanon}}: Just like many other animation companies Disney's best work was done during TheGoldenAgeOfAnimation (1930s until the end of the 1950s).
** WesternAnimation/SillySymphonies: Disney's best regarded animated short from his black-and-white era is ''WesternAnimation/TheSkeletonDance'', which started of his Silly Symphonies' series. It has remained popular and iconic throughout the centuries, while most of Disney's other black-and-white shorts, apart from ''Steamboat Willie'' have been forgotten and surpassed in popularity by his color shorts. The best animated Disney short in terms of popularity and among people in the animation business is ''WesternAnimation/TheBandConcert''. In terms of technical and dramatic achievement ''WesternAnimation/TheOldMill'' is also held in high regard.
** Of Disney animated feature films the earliest five (''"Snow White", "Pinocchio", "Fantasia", "Dumbo"'' and ''"Bambi"'') are considered to be his finest works, never surpassed in terms of dazzling technical achievements, dramatic and emotional power and hand-crafted charm. Which one is Disney's truest masterpiece, however, is still debated heavily. ''Disney/SnowWhiteAndTheSevenDwarfs'' remains the most popular with the general audience and film critics alike, also because it broke new ground in animation and showed off everything the Disney studios had learned and achieved while working on animated shorts. ''Disney/{{Pinocchio}}'' is less popular with the general public, but many film critics and animators consider it superior to ''Snow White'' in terms of character development, story, visual detail and exciting adventure. ''Disney/{{Fantasia}}'' is even less popular with the general public and was a flop on its general release. Some people find it either too pretentious or too kitschy, but it has been VindicatedByHistory over the years as the unquestionable highlight of the company's technical skills and admired for being the most controversial, experimental and epic of all of Disney's projects. ''Disney/{{Dumbo}}'', though not a technically or artistically groundbreaking film, has remained a public and critics' personal favorite ever since its release. ''Disney/{{Bambi}}'', Walt's own personal favorite, is generally considered to be a classic, but more a favorite with the general public than the critics.
* After Disney's death it took a long time before critics and public agreed on an animated feature that seemed on par with the work released during Walt's lifetime. ''Disney/BeautyAndTheBeast'' was a triumphant return to the old Disney charm, matching a strong story arc, stunning artwork, catchy songs and interesting main characters throughout the entire film. Many critics give it excellent reviews and it was the first Disney picture in five decades to win several Academy Awards. It was even the first animated feature to be nominated for the title ''Best Film''!
* Of all the Disney and {{Pixar}} films ''WesternAnimation/{{WALL-E}}'' and ''WesternAnimation/{{Up}}'' had the strongest positive response among critics and the general public. ''Up'' was even nominated for ''Best Feature'', as well as ''Best Animated Feature'' during the Oscars.
** In recent times, ''Disney/{{Tangled}}'', ''Disney/WreckItRalph'', or ''Disney/{{Frozen}}'' (the first being considered the beginning of the return to Disney's famous quality, the second being praised for its refreshing creativity and genuine heart, and the latter being favourably compared to ''Beauty and the Beast'' and ''The Lion King''). As of 2014, however, this title is now almost unanimously given to ''Frozen.''
* Creator/DreamworksAnimation: ''WesternAnimation/HowToTrainYourDragon'' and ''WesternAnimation/KungFuPanda'' are often considered to be their greatest animated films. The first two ''WesternAnimation/{{Shrek}}'' films are also candidates, though the following installments haven't fared as well in comparison. ''WesternAnimation/ThePrinceOfEgypt'' is their opus in 2D animation.
* Creator/RayHarryhausen: Fans and critics agree that ''Film/JasonAndTheArgonauts'' is both his best film in content, as well as the one which showcases his claymation talents the best.
* ''TheLegoMovie'' or ''Film/TwentyOneJumpStreet'' for Phil Lord and Chris Miller.
* Creator/HayaoMiyazaki: ''SpiritedAway'' and ''PrincessMononoke'' for Creator/HayaoMiyazaki stand out from his always exemplary work. ''Anime/TheWindRises'' is another candidate.
* Creator/WillisOBrien: The special effects in the original ''Film/KingKong'' (1933) are considered his masterpiece.
* Chris Sanders has either ''Disney/LiloAndStitch'', or ''WesternAnimation/HowToTrainYourDragon''.
* Creator/HenrySelick: ''WesternAnimation/TheNightmareBeforeChristmas'', which is often mistaken for a Creator/TimBurton movie (Burton only wrote it), is most likely Selick's best work.
* Creator/JanSvankmajer: ''Film/{{Alice}}'', among critics and fans of animation. His own fans also see it as his best work.
* Acclaimed animator RichardWilliams has literally referred to ''WesternAnimation/TheThiefAndTheCobbler'' (or at least his original vision for it, before it was butchered by ExecutiveMeddling) as his magnum opus; others believe ''Film/WhoFramedRogerRabbit'' was his masterpiece.
[[/folder]]

[[folder:Live-Action Filmmakers]]
* Jim Abrahams, David and Jerry Zucker, ''Film/{{Airplane}}'' and ''Film/TheNakedGun'' trilogy.
* Creator/WoodyAllen: ''Film/AnnieHall''.
* Creator/RobertAltman: To many to count, it’s usually a tie between ''Film/{{Nashville}}'', ''Film/TheLongGoodbye'', ''[[Film/McCabeAndMrsMiller [=McCabe=] and Mrs Miller]]'', and ‘’Film/ShortCuts’’.
* Creator/PaulThomasAnderson: ''Film/ThereWillBeBlood'', although he himself considers ''Film/{{Magnolia}}'' to be his best work.
* Creator/WesAnderson: ''Film/TheRoyalTenenbaums''.
* Creator/MichelangeloAntonioni: ''Film/LAvventura''.
* Creator/JuddApatow: ''Film/TheFortyYearOldVirgin''
* Creator/DarioArgento: ''Film/{{Suspiria}}''.
* Creator/DarrenAronofsky: Most critics are considering ''Film/BlackSwan'' to be Creator/DarrenAronofsky's masterpiece. Coming from the same guy who made ''Film/RequiemForADream'' and ''Film/TheWrestler'', that's saying a lot.
* Creator/MichaelBay: Though many would claim that Bay still hasn’t made anything that deserves the term ‘’magnum opus’’ his 1996 action thriller ‘’Film/TheRock’’ is his only film that was both a commercial as well as a critical success.
* Creator/WarrenBeatty: As a director ‘’Film/{{Reds}}’’was his ultimate passion project and the film that finally earned his an Academy Award.
* Creator/IngmarBergman: ''Film/TheSeventhSeal'' and ''Film/{{Persona}}''.
* Creator/BernardoBertolucci: ''Film/{{Novecento}}''.
* Creator/BusbyBerkeley: ''Film/FortySecondStreet''.
* Creator/KathrynBigelow: ‘’Film/TheHurtLocker’’ or ‘’Film/ZeroDarkThirty’’, though while the former won her an Oscar, the latter earned specific citations as such from critics and film fans.
* Creator/ZachBraff: ‘’Film/GardenState’’.
* Creator/KennethBranagh: Of all his Shakespeare films his 1996 adaptation of ''Hamlet'' has received the most public and critical acclaim.
* Creator/JamesLBrooks: ‘’Film/TermsOfEndearment’’.
* Creator/MelBrooks: His two critically and commercially most well beloved films were coincidentally made in the same year: ''Film/BlazingSaddles'' and ''Film/YoungFrankenstein''.
* Creator/TodBrowning: ''Film/{{Freaks}}''.
* Creator/LuisBunuel: ''Film/UnChienAndalou'' and ''Film/LAgeDeLOr''.
* Creator/TimBurton: ''Film/EdWood'' is his most critically acclaimed film, though ''Film/EdwardScissorhands'' is his personal favorite and the most expressive of his personal style. It has also proven to be his most popular film among the general public.
* Creator/JamesCameron: ''Film/{{Avatar}}'', the highest grossing film of all time, is the magnum opus of Creator/JamesCameron, though he has many highly respected and much-loved films in his oevre, such as ''Film/{{Aliens}}'' and ''Film/Terminator2Judgmentday''.
* Creator/FrankCapra: ''Film/MrSmithGoesToWashington'' and ''Film/ItsAWonderfulLife''.
* Creator/JohnCarpenter: ''Film/TheThing1982'' is Creator/JohnCarpenter's most respected film, though ''Film/{{Halloween 1978}}'' is the most successful.
* Creator/JohnCassavetes: ''Film/{{Shadows}}''.
* Creator/CharlieChaplin: ''Film/TheGoldRush'' and ''Film/CityLights''.
* Creator/TheCoenBrothers: ‘’Film/BartonFink’’, which won the Palm d’ Or in Cannes, and ''Film/NoCountryForOldMen'', which won the Oscar for Best Movie, would be those. Among the general public ‘’Film/{{Fargo}}’’ has proven to be the most well received. Though the CultClassic ‘’Film/TheBigLebowski’’ has the most vocal fanbase.
* Creator/ChrisColumbus: ''Film/HomeAlone'' and ''Film/MrsDoubtfire''.
* Creator/FrancisFordCoppola: ''Film/TheGodfather'', both the first and second installment. Another masterpiece is ''Film/ApocalypseNow'', though most people would place ''The Godfather'' higher as his magnum opus.
* Creator/SofiaCoppola: ''Film/LostInTranslation''.
* Creator/SergioCorbucci: ''Film/{{Django}}''.
* Creator/WesCraven: ''Film/ANightmareOnElmStreet1984''.
* Creator/DavidCronenberg: ''Film/TheFly''.
* Creator/CameronCrowe: ''Film/JerryMaguire'' and ''Film/AlmostFamous''.
* Creator/AlfonsoCuaron: A lot of critics would be hard pressed to pick from {{Film/Gravity}} or Film/ChildrenOfMen.
* Creator/JoeDante: ''Film/{{Gremlins}}''.
* Creator/FrankDarabont: ‘’Film/TheShawshankRedemption’’’.
* Creator/JonathanDaytonAndValerieFaris: ''Film/LittleMissSunshine''.
* Creator/GuillermoDelToro: ‘’Film/PansLabyrinth’’.
* Creator/BrianDePalma: ''Film/{{Carrie|1976}}, Film/DressedToKill'' or ''Film/{{Scarface|1983}}''.
* Creator/VittorioDeSica: ''Film/BicycleThieves''
* Creator/WaltDisney: Of all his live-action films ‘’Film/MaryPoppins’’ is considered the pinnacle culimnation of all his innovations and progressions as a film maker.
* Creator/ClintEastwood: ''Film/{{Unforgiven}}''.
* Creator/BlakeEdwards: The ‘’Franchise/ThePinkPanther’’ series.
* Creator/SergejEisenstein: ''Film/TheBattleshipPotemkin''.
* Creator/RainerWernerFassbinder: ''Film/BerlinAlexanderplatz''.
* Creator/FedericoFellini: To the general public ''Film/LaDolceVita''. To film critics and directors: ''Film/EightAndAHalf''.
* Creator/DavidFincher: His twin opuses are ''Film/FightClub'' and ''Film/{{Se7en}}''. ''Film/TheSocialNetwork'' is his most critically acclaimed film, however.
* Creator/JohnFord: ''Film/TheSearchers''.
* Creator/WilliamFriedkin: Either ''Film/TheFrenchConnection'' or ''Film/TheExorcist'' for famed director William Friedkin. Friedkin himself views ''{{Film/Sorcerer}}'' as his magnum opus, which thanks to being VindicatedByHistory, many are beginning to agree.
* Creator/TerryGilliam: Out of all his movies fans and critics agree that ''Film/{{Brazil}}'' is by far the most well executed experiment.
* Creator/DWGriffith: All unfortunate racist content aside ''Film/TheBirthOfANation''.
* Creator/JamesGunn: 'Film/GuardiansOfTheGalaxy'' is unquestionably seen as this for Creator/JamesGunn, being his most acclaimed and commercially successful film.
* Creator/HowardHawks: ''Film/RioBravo''.
* Creator/WernerHerzog: ''Film/AguirreTheWrathOfGod''
* Creator/AlfredHitchcock: Hitchcock's magnum opus is split between ''Film/{{Vertigo}}'' and ''Film/{{Psycho}}'' (the former more often tops "greatest movies" lists, such as being declared the greatest film of all time by the British Film Institute in 2012). His favorite was ''Film/ShadowOfADoubt''.
* Creator/TobeHooper: ''Film/TheTexasChainSawMassacre1974''.
* Creator/RonHoward: ''Film/ABeautifulMind''.
* The Hughes Brothers: ''Film/MenaceIISociety''
* Creator/JohnHughes: ''Film/TheBreakfastClub''.
* Creator/JohnHuston: ‘’Film/TheTreasureOfTheSierraMadre’’.
* Creator/PeterJackson: The ''Film/TheLordOfTheRings'' series.
* Creator/JeanPierreJeunet: ''Film/{{Amelie}}''.
* Creator/AlejandroJodorowsky: ‘’Film/ElTopo’’.
* Creator/JoeJohnston: ''Film/CaptainAmericaTheFirstAvenger''
* Creator/SpikeJonze: Either ''{{Film/Her}}'' or ''Film/BeingJohnMalkovich''.
* Creator/NeilJordan: ‘’Film/TheCryingGame’’.
* Creator/EliaKazan: ''Film/OnTheWaterfront'', followed closely by ''Film/AStreetcarNamedDesire'
* Creator/BusterKeaton: ''Film/TheGeneral''
* Creator/KrzysztofKieslowski: ''Film/TheDecalogue''.
* ''Film/KingKong'' (the 1933 version) and ''[[Film/{{Gojira}} Godzilla]]'' (the 1954 version) are generally seen as the best monster movies ever.
* Creator/TakeshiKitano: ''Film/{{Sonatine}}''.
* Creator/StanleyKubrick: ‘’Film/TwoThousandAndOneASpaceOdyssey’’ is his most epic and artistically groundbreaking film, well respected by all film critics and directors, even quite some general movie fans. His best loved film with the general public and critics alike is ‘’Film/DrStrangelove’’.
* Creator/AkiraKurosawa: ‘’Film/TheSevenSamurai’’.
* Creator/JohnLandis: ''Film/AnAmericanWerewolfInLondon''.
* Creator/FritzLang: ‘’Film/{{Metropolis}}’’.
* Creator/DavidLean: ''Film/LawrenceOfArabia'', which is saying a lot for the man who also crafted ''TheBridgeOnTheRiverKwai''.
* Creator/AngLee: Fans of Ang Lee may debate whether ''Film/CrouchingTigerHiddenDragon'' or ''Film/BrokebackMountain'' best fit this, though ''Film/LifeOfPi'' has popped up as a notable choice.
* Creator/SpikeLee: ‘’Film/DoTheRightThing’’ and ‘’Film/MalcolmX’’ have both received the most critical and public acclaim. Of his more recent work, ‘’Film/TwentyFifthHour’’, has also reached classic status, also because it proved to many that he is more than a director of ‘’black consciousness’ movies.
* Creator/SergioLeone: ''Film/OnceUponATimeInTheWest'', though ''Film/TheGoodTheBadAndTheUgly'' is more popular.
* Creator/RichardLester: ''Film/AHardDaysNight'' will forever remain his most groundbreaking, influential, famous, critically acclaimed, popular contribution.
* Creator/BarryLevinson: ‘’Film/RainMan’’.
* Creator/JerryLewis: ‘’Film/TheNuttyProfessor’’.
* Creator/KevinLima: ‘’Disney/{{Tarzan}}’’, ‘’[[Film/OneHundredAndOneDalmatians 102 Dalmatians]]’’ and ‘’Film/{{Enchanted}}’’.
* Creator/ErnstLubitsch: ‘’Film/{{Ninotchka}}’’ and ''Film/ToBeOrNotToBe''.
* Creator/GeorgeLucas: The original ''Film/StarWars'' trilogy, which launched a franchise worth billions and is often credited for reshaping the film industry.
* Creator/SidneyLumet: ‘’Film/TwelveAngryMen’’ and ‘’Film/{{Network}}’’.
* Creator/DavidLynch: ‘’Film/{{Eraserhead}}, ''Film/BlueVelvet'' and ''Film/MulhollandDrive''.
* Creator/TerrenceMalick: ‘’Film/{{Badlands}}’’.
* Creator/JosephLMankiewicz: ''Film/AllAboutEve''.
* Steve [=McQueen=]: ''Film/TwelveYearsASlave''.
* Creator/GeorgesMelies: ''Film/ATripToTheMoon''.
* Creator/RussMeyer: ''Film/FasterPussycatKillKill''
* Creator/KenjiMizoguchi: ''Film/{{Ugetsu}}''.
* Creator/MichaelMoore: ''Film/RogerAndMe'' is even well liked among people who dislike Moore. Apart from that ''Film/BowlingForColumbine'' is in many ways his most entertaining film.
* Creator/FriedrichWilhelmMurnau: ''Film/{{Nosferatu}}'', though ''Film/{{Sunrise}}'' enjoys an even higher status among film critics.
* Creator/MikeNichols: As prolific as his career is, Mike Nichols will likely always be known best for his first two films, ''Film/WhosAfraidOfVirginiaWoolf'' and (especially) ''Film/TheGraduate''. Then again, the HBO miniseries adaptation of ''Theatre/AngelsInAmerica'' can also serve as this.
* Creator/ChristopherNolan: His Batman films: ''Film/BatmanBegins'', ''Film/TheDarkKnight'' and ''Film/TheDarkKnightRises'', are often considered this, but he personally considers it to be ''Film/{{Inception}}'', as he was working on it for close to a ''decade''.
* Creator/LaurenceOlivier: His Shakespeare films.
* Creator/GavinOConnor: ‘’Film/{{Warrior}}’’.
* Creator/DavidORussell: ‘’Film/TheFighter’’.
* Creator/PierPaoloPasolini: ''Film/IlVangeloSecondoDiMatteo''.
* Creator/SamPeckinpah: ‘’Film/TheWildBunch’’.
* Creator/ArthurPenn: ‘’Film/BonnieAndClyde’’.
* Creator/SeanPenn: ‘’Film/IntoTheWild’’.
* Creator/WolfgangPetersen: ''Film/DasBoot''.
* Creator/OttoPreminger: ‘’Film/AnatomyOfAMurder’’.
* Creator/RomanPolanski: ''Film/{{Chinatown}}''.
* Creator/MichaelPowell and Creator/EmericPressburger: ''Film/BlackNarcissus'' and ''Film/AMatterOfLifeAndDeath''.
* Creator/JoshRadnor: ‘’Film/LiberalArts’’.
* Creator/SamRaimi: ''Film/TheEvilDead''.
* Creator/HaroldRamis: ''Film/GroundhogDay''
* Creator/CarolReed: ‘’Film/TheThirdMan’’
* Creator/IvanReitman: ''Film/{{Ghostbusters}}''
* Creator/JeanRenoir: ‘’Film/LaGrandeIllusion’’.
* Creator/RobertRodriguez: ‘’Film/ElMariachi’’ and ‘’Film/SinCity’’ have received the most commercial and critical acclaim.
* Creator/GeorgeARomero: ''Film/TheNightOfTheLivingDead'' and ''Film/DawnOfTheDead''
* Creator/RobertoRossellini: ''Film/RomaCittaAperta''.
* Creator/MartinScorsese: Usually a three-way tie between ''Film/TaxiDriver'', ''Film/RagingBull'' and ''Film/{{Goodfellas}}''.
* Creator/RidleyScott: ‘'Film/{{Alien}}'' and ''Film/BladeRunner''
* Creator/MNightShyamalan: ‘’Film/TheSixthSense’’. He himself considers ''{{Unbreakable}}'' to be his greatest work (yet).
* Creator/BryanSinger: ''Film/XMenDaysOfFuturePast'' has become this for the ''X-Men'' film series in general, and for BryanSinger specifically. It's the highest-rated film in the series as well as Singer's personal highest-rated film made (so far), and has received near-universal acclaim from both audiences and critics. In the more serious department his movie ‘’Film/TheUsualSuspects’’ has received much critical acclaim.
* Creator/JohnSingleton: ‘’Film/BoyzNTheHood’’.
* Creator/KevinSmith: ‘’Film/{{Clerks}}’’.
* Creator/StevenSoderbergh: ‘’Film/{{Traffic}}’’ and his epic two-part biography about the life of Ché Guevara: ‘’Film/{{Che}}’’.
* Creator/ZackSnyder: ‘’Film/DawnOfTheDead’’ and ‘’Film/ThreeHundred’’.
* Creator/StevenSpielberg: ‘’Film/SchindlersList’’ is his most acclaimed, personal and important film, yet ‘’Film/ETTheExtraTerrestrial’’ is his most iconic and typical of his style. Spielberg personally said that if he would be remembered it would be for those two movies.
* Creator/GeorgeStevens: ''Film/{{Giant}}'' and ‘’Film/APlaceInTheSun’’
* Creator/ErichVonStroheim: ''Film/{{Greed}}''
* Creator/OliverStone: ‘’Film/{{Platoon}}’’ and ‘’Film/{{JFK}}’’.
* Creator/QuentinTarantino's Magnum Opus is ''Film/PulpFiction''. While other films of Tarantino have received great critical acclaim, none compare to the impact on film and modern cultural than that created by ''Pulp Fiction''.
* Creator/AndreiTarkovsky: ''Film/{{Solaris}}''.
* Creator/JacquesTati: ''Film/MrHulotsHoliday'' is the most popular among critics and audience alike, though Tati fans feel that his vision reached epic heights with ''Film/{{Playtime}}, which is in many ways his true magnum opus.
* Creator/GusVanSant: ''Film/DrugstoreCowboy''.
* Creator/PaulVerhoeven: In the Netherlands ‘’Film/TurkishDelight’’ is well beloved and even considered to be the best Dutch film of all time. Of his American movies ‘’Film/Robocop1987’’ would count.
* Creator/MatthewVaughn: ‘’Film/LayerCake’’.
* The Wachowski Siblings: ‘’Film/TheMatrix’’, the first installment.
* Creator/JohnWaters: ''Film/PinkFlamingos''.
* Creator/MarcWebb: ''Film/FiveHundredDaysOfSummer''.
* ''Film/CitizenKane'' for Creator/OrsonWelles, to the point that it's considered the default answer for "best film ever." Welles' own personal choice, however, was ''Film/TheTrial''.
* Creator/JossWhedon: ''Film/TheAvengers'' is a strong candidate not just for Whedon ''and'' the MarvelCinematicUniverse, but for the entire SuperHero movie genre ''itself''. For the MCU, the other contenders are ''Film/IronMan'', ''Film/CaptainAmericaTheWinterSoldier'', and ''Film/GuardiansOfTheGalaxy''.
* Creator/BillyWilder: There are too many to count, but most cite ''Film/SunsetBoulevard''. After that, ''Film/SomeLikeItHot'', ''Film/TheApartment'' and ''Film/DoubleIndemnity''.
* Creator/RobertWise: ''Film/WestSideStory''.
* Creator/EdWood: Being the ‘’worst director of all time’’ one might wonder how he could possibly have one movie worth of being his magnum opus? Well, there’s one, ‘’Film/PlanNineFromOuterSpace’’ is SoBadItsGood, but overall his most enjoyable film.
* Creator/DavidYates: The second half of ''Film/HarryPotter'', particularly ''Deathly Hallows''.
* Creator/FredZinneman: ''Film/HighNoon'' and ''Film/FromHereToEternity''
[[/folder]]

[[folder:Franchises]]
Usually the first installment in most cases, though there have been exceptions.
* ''Franchise/{{Dracula}}'' (Universal films): Though the Creator/BelaLugosi one [[Film/{{Dracula 1931}} from 1931]] is hailed as a classic, it's the Spanish version of that same film, from the same year that has risen to much favorable reviews under horror fans. The Spanish crew had the opportunity to look at the rushes of the Lugosi version and record the same scenes with much better camera angles and less problems with the censors.
* ''Franchise/EvilDead'': Though the [[Film/TheEvilDead1981 first one]] is popular, it's still a low-budget movie. The [[Film/EvilDead2 second one]] is generally deemed better in execution, because it takes all the best stuff of the first one and adds a lot of new ideas, all on a higher budget.
* ''Franchise/{{Frankenstein}}'' (Universal films): The [[Film/{{Frankenstein 1931}} first one]] and the first sequel ''Film/BrideOfFrankenstein'' are equally considered great, with the second one often being praised as being better.
* ''Franchise/TheGodfather'': The first two films are considered part of the same epic saga and are equally brilliant cinema. People still discuss which one of the two is better, but many agree it's a tough competition.
* ''Franchise/{{Godzilla}}'': The [[Film/{{Gojira}} 1954 version]] is still considered superior to all the increasingly more silly sequels that followed. Guillermo del Toro's American remake [[Film/{{Godzilla 2014}} from 2014]] is considered to be a honorable adaptation.
* ''Franchise/{{Halloween}}'': ''Film/{{Halloween 1978}}'' remains the best installment, though the third one, ''Film/HalloweenIIISeasonOfTheWitch'', has received more acclaim in recent years for being an original and subversive movie that just suffers from being attached to this franchise, without actually having the main franchise character Michael Myers in it.
* Franchise/IndianaJones: ''Film/RaidersOfTheLostArk''. The ''[[Film/IndianaJonesAndTheTempleOfDoom Temple of Doom]]'' is generally considered to be the most adventurous and ''[[Film/IndianaJonesAndTheLastCrusade The Last Crusade]]'' the funniest one. Still, both of them can't surpass the epicness and charisma of the first installment.
* ''Film/JamesBond'': ''Film/{{Goldfinger}}'', ''Film/OnHerMajestysSecretService'', ''Film/TheSpyWhoLovedMe'', ''Film/GoldenEye'', ''Film/CasinoRoyale'' and ''Film/{{Skyfall}}'' are considered the franchises best works, and finding a list of "Best Bond films" which exclude any, or most of these, is very rare. In terms of the ''best'' actor to perform the spy Creator/SeanConnery is still considered above anyone else.
* Franchise/MarvelCinematicUniverse: ''Film/IronMan1'', ''Film/TheAvengers'', ''Film/CaptainAmericaTheWinterSoldier'', and ''Film/GuardiansOfTheGalaxy'' are strong contenders.
* Franchise/MontyPython: Of all the films the team released ''Film/MontyPythonAndTheHolyGrail'' is the most popular with the general audience, though their true masterpiece in terms of execution, comedy, script and even social commentary is ''Film/MontyPythonsLifeOfBrian'', also their own personal favorite.
* ''Film/ThePinkPanther'': The first one is enjoyable in its own right, but it's ''Film/TheReturnOfThePinkPanther'' that most fans enjoy the most.
* ''Franchise/{{Rambo}}'': ''Film/FirstBlood''. The first ''Rambo'' film is generally considered the best one, even having a totally different tone compared to the more action-packed, overly patriotic comic book violence war propaganda fantasies that followed.
* ''Franchise/{{Rocky}}'': The [[Film/{{Rocky}} first one]], which even won three Oscars.
* ''Franchise/{{Scream}}'': Either of the [[Film/{{Scream 1996}} first]] [[Film/{{Scream 2}} two]] films, but definitely ''not'' [[Film/{{Scream 3}} the third]]. [[Film/{{Scream 4}} The fourth]] is an AcclaimedFlop.
* ''Film/SpiderManTrilogy'': ''Film/SpiderMan2'' (2004) is not only the most highly regarded and most successful of the trilogy, but it's also touted as one of the greatest superhero movies of all time.
* ''Franchise/StarWars'': The original trilogy directed between 1977 and 1984 is still considered to be the best, with ''Film/TheEmpireStrikesBack'' as the most critically and commercially acclaimed installment.
* ''Franchise/{{Tarzan}}'': ''Film/TarzanTheApeMan'' (1932), with Creator/JohnnyWeissmuller.
* ''Franchise/{{Terminator}}'': A rare case in which both ''Film/TheTerminator'' (1984) and its sequel ''Film/Terminator2JudgmentDay'' (1991) are seen as equally magnificent films.
* ''Film/XMen'': ''Film/XMenDaysOfFuturePast'' (2014) is the most highly regarded of the film franchise.
[[/folder]]

[[folder:Novelists & Poets]]
* Creator/DouglasAdams: ''Franchise/TheHitchhikersGuideToTheGalaxy''.
** Adams himself, on the other hand, considered ''Last Chance To See'' his greatest work. A small amount of his fans agree with him on that.
* Creator/LloydAlexander's ''Literature/ChroniclesOfPrydain''.
* Creator/IsaacAsimov: ''Literature/{{Foundation}}''. On the other hand, the series was never concluded and many people find it somewhat dry. In terms of a legacy, ''Literature/IRobot'' probably fits more.
* Creator/WHAuden: ''Funeral Blues''.
* Creator/JaneAusten: ''Literature/PrideAndPrejudice'' is often considered the MagnumOpus , but Austen considered ''Literature/{{Emma}}'' her best work.
* Creator/SaulBellow: His final ''Literature/{{Ravelstein}}''--a RomanAClef about one of his close friends, [[http://en.wikipedia.org/wiki/Allan_Bloom Allan Bloom]]--is considered by many literary critics to be his masterpiece. Apart from that ''Herzog'' is also a strong contender.
* Creator/RayBradbury: 'Literature/{{Fahrenheit 451}}
* Creator/CharlotteBronte: ''Literature/JaneEyre'' , , but ''Literature/{{Villette}}'' also has its supporters who consider it superior to the former.
* Mikhail Bulgakov: ''Literature/TheMasterAndMargarita''
* Creator/WilliamSBurroughs: ''Literature/NakedLunch''.
* Creator/LewisCarroll: ''[[Literature/AliceInWonderland Alice's Adventures in Wonderland]]'' and its sequel, ''Through the Looking-Glass''
* Miguel Cervantes' ''[[Literature/DonQuixote The Ingenious Hidalgo Don Quixote of La Mancha]]''. Commonly hailed as "the first modern novel". In 2002, a panel of 100 writers from 54 different countries (including Salman Rushdie, John Irving, and Carlos Fuentes) voted it "the best literary work ever written," in a list that also contained Shakespeare, the Bible, and Homer.
* Creator/RaymondChandler's ''Literature/TheBigSleep''.
* Creator/AgathaChristie: The play Theatre/TheMouseTrap is still in syndication after his debut in 1953, which should account for something! As far as her novels go Literature/HerculePoirot and Literature/MissMarple have been her most enduring masterpieces of series.
* For Creator/CirqueDuSoleil, the non-touring show ''Theatre/{{O}}'' is generally regarded as the company's greatest achievement. Among the tours, ''Theatre/{{Alegria}}'' holds this position. Both were written and directed by Franco Dragone, who now works independently of the company, and will probably serve as ''his'' dual magnum opuses for years to come despite such solo successes as Celine Dion's popular Las Vegas show ''A New Day''.
* Creator/ArthurCClarke's ''Literature/ChildhoodsEnd'', although ''2001: A Space Odyssey'' can also contend.
* Hugo Claus: ''The Sorrow of Belgium''.
* Creator/SuzanneCollins: The first book in the ''[[Literature/TheHungerGames Hunger Games]]'' trilogy -- or the trilogy as a whole.
* Creator/GlenCook: Literature/TheBlackCompany .
* Creator/RoaldDahl
** Among his children's books, cases can be made for ''Literature/JamesAndTheGiantPeach'', ''Literature/TheBFG'', and especially ''Literature/{{Matilda}}'' -- but the one that's going down in history is ''Literature/CharlieAndTheChocolateFactory'', his most popular, [[AdaptationOverdosed most-adapted]], most-beloved work.
** Among his works for adults, it's a tie between his ''Literature/TalesOfTheUnexpected'' series and ''Literature/MyUncleOswald''.
* Creator/PhilipKDick's ''Literature/{{VALIS}}'' is generally considered his magnum opus in academic circles, although his only HugoAward-winner, ''Literature/TheManInTheHighCastle'', is another strong contender, as is ''Literature/{{Ubik}}'', which ''Time Magazine'' called one of the 100 best novels since 1923. ''Literature/DoAndroidsDreamOfElectricSheep'' (the basis for the movie ''Film/BladeRunner'') is probably his best known work, though.
* Creator/CharlesDickens: ''Literature/BleakHouse'', ''Literature/DavidCopperfield'', or ''Literature/GreatExpectations'' for Creator/CharlesDickens; Dickens himself regarded ''Literature/GreatExpectations'' as the greatest novel he ever wrote.
* Creator/FyodorDostoevsky: ''Literature/CrimeAndPunishment'' and ''Literature/TheBrothersKaramazov''.
* Creator/ArthurConanDoyle: He will always be remembered as the one who gave Literature/SherlockHolmes to the world. Of the "Holmes" stories, either the short story collection ''The Adventures of Sherlock Holmes'' or the novel ''Literature/TheHoundOfTheBaskervilles'' tend to be praised as the finest examples.
* Creator/WilliamFaulkner: ''Literature/TheSoundAndTheFury''.
* F. Scott Fitzgerald's ''Literature/TheGreatGatsby''.
* Creator/PaulFeval seems to have intended Literature/JohnDevil to be his when it wrote it. it's his largest novel and incorporates ideas from everything he'd written before. And is kind of taken the most seriously of anything he wrote before his "conversion" to the religion he already practiced. But it wasn't greatly received at the time, and despite likely having an influence on ''Monsieur Lecoq'' and thus indirectly Literature/SherlockHolmes, and anticipating many common Tropes of modern Popular Fiction it fell into obscurity and went over a century without being reprinted until its Enlgish translation by Creator/BrianStableford.
** His successful MagnumOpus is ''Literature/TheBlackCoats'' saga, which continued many themes of ''John Devil'' and earlier works.
** ''Le Bossu'' is the most frequently adapted only because it's a simpler tale then either of those.
* Creator/WilliamGolding: ''Literature/LordOfTheFlies''.
* Creator/KennethGrahame: ''Literature/TheWindInTheWillows''.
* Creator/JohnGreen: ''Literature/TheFaultInOurStars'' , as well as ''Literature/LookingForAlaska''
* Creator/RobertAHeinlein: ''Literature/StrangerInAStrangeLand'', though there are other candidates like ''Literature/StarshipTroopers'', ''Literature/TheMoonIsAHarshMistress'' and ''Literature/TimeEnoughForLove''.
* Joseph Heller's ''Literature/CatchTwentyTwo''.
* Creator/ErnestHemingway: ''Literature/TheOldManAndTheSea''.
* Creator/FrankHerbert's ''Literature/{{Dune}}''.
* Creator/HermannHesse: ''Literature/TheGlassBeadGame''
* Creator/AldousHuxley: ''Literature/BraveNewWorld''.
* John Irving: ''Literature/APrayerForOwenMeany''
* Creator/RobertJordan has ''Literature/TheWheelOfTime''.
* Creator/JamesJoyce: Typically thought to be ''Literature/{{Ulysses}}'', aside from a few diehard MindScrew fans who say it's ''Literature/FinnegansWake''
* Creator/FranzKafka: ''Literature/TheTrial''.
* Katherine Kerr: ''Literature/{{Deverry}}'' series.
* Creator/StephenKing: He has said that if he has a MagnumOpus, it's ''Franchise/TheDarkTower'' series. Fans suggest ''Literature/TheStand''.
** King considers ''Literature/TheDeadZone'' to be the best of his novels, and "[[Literature/DifferentSeasons The Body]]" to be his best piece of writing, period.
* Creator/HarperLee: ''Literature/ToKillAMockingBird''.
* Creator/UrsulaKLeGuin: Either ''Literature/EarthseaTrilogy'' or ''Literature/TheLeftHandOfDarkness'' for Creator/UrsulaKLeGuin, depending on who you ask. ''Literature/TheDispossessed'' also gets a strong mention, and "[[PoweredByAForsakenChild Those Who Walk Away from Omelas]]" is generally considered the best of her short stories.
* Creator/CSLewis: ''Literature/TheChroniclesOfNarnia''
* Creator/JackLondon's ''Literature/TheCallOfTheWild''.
* Creator/HPLovecraft: ''Literature/TheColourOutOfSpace'', The Call Of Cthulhu or The Case of Charles Dexter Ward.
* Creator/CormacMcCarthy: ''Literature/BloodMeridian'' , although ''Literature/TheBorderTrilogy'' is a very strong contender as well.
* Creator/GabrielGarciaMarquez: ''Literature/OneHundredYearsOfSolitude''.
* Creator/GeorgeRRMartin: ''Literature/ASongOfIceAndFire'' Within that series ''Literature/AStormOfSwords'' is agreed to be the best of the books so far.
* Adam Mickiewicz's ''Pan Tadeusz'', considered one of the best works in the Polish language.
* Creator/HermanMelville's ''Literature/MobyDick''.
* Harry Mulisch: ''The Discovery of Heaven''.
* Creator/VladimirNabokov wrote many books, but ''Literature/{{Lolita}}'' is the only one most people have heard of. Although some of his other books are well-known among English majors. And ''Literature/PaleFire'' seems to be well-read by educated people, and it is likely a very distant runner up in the contest for most famous Nabokov book. (''Lolita'' was a ''success de scandal''; none of his other books are from the POV of a child molester.)
* Ryogho Narita: ''LightNovel/{{Baccano}}'' and ''LightNovel/{{Durarara}}''
* Creator/GeorgeOrwell: ''Literature/NineteenEightyFour'' or ''Literature/AnimalFarm''.
* Creator/ChuckPalahniuk: ''Literature/FightClub''
* Creator/EdgarAllanPoe: ''Literature/TheRaven''.
* Creator/FrederikPohl: ''Literature/{{Gateway}}''
* Creator/TerryPratchett's ''Literature/{{Discworld}}'' novels, it's a tossup between ''Discworld/NightWatch'' and ''Discworld/IShallWearMidnight''.
* Otfried Preußler: ''Literature/{{Krabat}}''
* Creator/ThomasPynchon's ''Literature/GravitysRainbow''.
* Creator/PhilipPullman: ''Literature/HisDarkMaterials''
* Creator/AynRand's ''Literature/AtlasShrugged''.
* ''Theatre/TheSoundOfMusic'' is often hailed as the frontrunner for RodgersAndHammerstein, although ''Theatre/{{Oklahoma}}'' wouldn't be out of the running. The men themselves called ''Theatre/{{Carousel}}'' (Rodgers' favorite) and ''Theatre/TheKingAndI'' (Hammerstein's favorite) their best works.
* Creator/JKRowling: ''Literature/HarryPotter''.
** Also a literal ''[[http://en.wikipedia.org/wiki/Magnum_opus_(alchemy) magnum opus,]]'' since the series itself is an example of [[http://www.hogwartsprofessor.com/literary-alchemy-via-harry-potter-an-introduction/ "literary alchemy".]]
* Creator/JDSalinger: ''Literature/TheCatcherInTheRye''.
* R.A. Salvatore: ''Literature/TheLegendOfDrizzt''.
* Creator/BrandonSanderson is apparently planning ''Literature/TheStormlightArchive'' to be this, but currently, ''Literature/{{Mistborn}}'' is generally considered his greatest work.
* Creator/AndrzejSapkowski: ''Literature/TheWitcher''.
* Henryk Sienkiewicz's ''[[Literature/SienkiewiczTrilogy Trilogy]]''.
* For Creator/StephenSondheim, it's either ''Theatre/SweeneyToddTheDemonBarberOfFleetStreet'', or ''Theatre/WestSideStory'', although he considers his best work to be ''Theatre/{{Assassins}}''.
* Oswald Spengler: ''Literature/TheDeclineOfTheWest'' for Oswald Spengler (1911-22 - yes, that includes UsefulNotes/WorldWarOne).
* Creator/JohnSteinbeck: ''Literature/OfMiceAndMen'' or ''Literature/TheGrapesOfWrath''.
** Though Steinbeck himself considered ''Literature/EastOfEden'' to be his masterpiece.
* Jonathan Swift's ''Literature/GulliversTravels''.
* Creator/WilliamMakepeaceThackeray: ''Literature/VanityFair''.
* Creator/HunterSThompson was a prolific journalist and author, writing many articles and books covering politics at least up until the 1992 presidential election, but everyone knows him for ''Literature/FearAndLoathingInLasVegas''. Shame considering how all his work is so awesome.
* Creator/JRRTolkien: Most readers assume ''Literature/TheLordOfTheRings'' is this for Creator/JRRTolkien, but Tolkien himself considered ''Literature/TheSilmarillion'' (which he worked on for longer) his MagnumOpus.
* Creator/LeoTolstoy: ''Literature/WarAndPeace''
* Creator/KurtVonnegut: ''Literature/CatsCradle'' or ''Literature/SlaughterhouseFive''.
* Creator/DavidFosterWallace: ''Literature/InfiniteJest''
* Creator/MargaretWeis and Tracy Hickman: Literature/{{Dragonlance}}'' as both a whole universe and individual books in the series
** Or possibly ''Literature/TheDeathGateCycle''
* Creator/HGWells' iconic ''Literature/TheWarOfTheWorlds''.
* Creator/EBWhite: ''Literature/CharlottesWeb''. Coincidentally, Charlotte the spider in the story also explicitly referred to her egg sac as her MagnumOpus, even explaining the term to Wilbur the pig.
* Creator/RogerZelazny: ''Literature/TheChroniclesOfAmber''
[[/folder]]

[[folder:Theatre (playwrights)]]
* Creator/{{Aeschylus}}: ''Theatre/TheOresteia''.
* Creator/EdwardAlbee: ''Theatre/WhosAfraidOfVirginiaWoolf''
* Creator/{{Aristophanes}}: ''Theatre/{{Lysistrata}}''
* Creator/SamuelBeckett: ''Theatre/WaitingForGodot''
* Creator/BertoltBrecht: ''Theatre/TheThreepennyOpera'' and ''Theatre/MotherCourageAndHerChildren''.
* Creator/AntonChekhov: ''Theatre/UncleVanya''
* Creator/CirqueDuSoleil: the non-touring show ''Theatre/{{O}}'' is generally regarded as the company's greatest achievement. Among the tours, ''Theatre/{{Alegria}}'' holds this position. Both were written and directed by Franco Dragone, who now works independently of the company, and will probably serve as ''his'' dual magnum opuses for years to come despite such solo successes as Celine Dion's popular Las Vegas show ''A New Day''.
* Creator/NoelCoward: ''Theatre/BriefEncounter''.
* Creator/{{Euripides}}: ''Theatre/{{Medea}}''.
* Creator/DarioFo: ''Theatre/MisteroBuffo''
* Creator/BobFosse: ''Theatre/{{Cabaret}}''
* Creator/JohannWolfgangVonGoethe: ''Theatre/{{Faust}}''
* Creator/HenrikIbsen: ''Theatre/PeerGynt''
* Creator/ChristopherMarlowe: ''Theatre/TheTragicalHistoryOfDoctorFaustus''.
* Creator/ArthurMiller: ''Theatre/DeathOfASalesman''.
* Creator/{{Moliere}}: ''Theatre/{{Tartuffe}}''.
* Creator/HaroldPinter: ''Theatre/TheBirthdayParty''.
* Creator/LuigiPirandello: ''Theatre/SixCharactersInSearchOfAnAuthor''
* Creator/RichardRodgersAndOscarHammerstein: ''Theatre/TheSoundOfMusic'' is often hailed as the frontrunner, although ''Theatre/{{Oklahoma}}'' wouldn't be out of the running. The men themselves called ''Theatre/{{Carousel}}'' (Rodgers' favorite) and ''Theatre/TheKingAndI'' (Hammerstein's favorite) their best works.
* Edmond de Ronstand: ''Theatre/CyranoDeBergerac''
* Creator/JeanPaulSartre: ''Theatre/NoExit''.
* Creator/StephenSchwartz: ''Theatre/{{Wicked}}''
* Claude-Michel Schonberg and Alain Boublil: ''Theatre/LesMiserables'', the longest-running, most-performed work of musical theater ever written.
* Creator/WilliamShakespeare is an interesting case. The Bard wrote so many incredible, famous, and influential plays that scholars have quite a few options when debating which play was his greatest. ''Theatre/{{Hamlet}}'' is a common contender, and is probably Shakespeare's most famous and most analyzed play, and is often cited as one of the greatest, if not ''the'' greatest, work of English literature ''ever''. Meanwhile, ''Theatre/KingLear'' started overtaking ''Hamlet'' in later years in consideration for "Shakespeare's Greatest Work" as judged by the {{Literature}} Professors of the world. Overall, the title of "Shakespeare's greatest play" tends to jump back and forth between ''Lear'', ''Hamlet'', and ''Theatre/{{Othello}}''.
* Creator/GeorgeBernardShaw: ''Theatre/{{Pygmalion}}''.
* Creator/{{Sophocles}}: ''Theatre/{{Antigone}}'' and ''Theatre/{{Oedipus the King}}''
* Creator/TomStoppard: ''Theatre/RosencrantzAndGuildensternAreDead''
* Creator/AugustStrindberg: ''The Red Room''.
* For Creator/StephenSondheim, it's either ''Theatre/SweeneyToddTheDemonBarberOfFleetStreet'', or ''Theatre/WestSideStory'', although he considers his best work to be ''Theatre/{{Assassins}}''.
* Creator/TennesseeWilliams: ''Theatre/CatOnAHotTinRoof'' and ''Theatre/AStreetcarNamedDesire''
* Creator/OscarWilde: ''Theatre/TheImportanceOfBeingEarnest''.
[[/folder]]

[[folder:Authors of Non-fiction]]
* Julia Child is best known for her first TV show ''The French Chef'' and her collaboration on ''Mastering the Art of French Cooking'', but her far less famous ''The Way to Cook'' book/video combination constitutes possibly the greatest project of her life.
* UsefulNotes/IsaacNewton: ''Philosophiae Naturalis Principia Mathematica'' (Mathematical Principles of Science) is not only Issac Newton's most important book but considered one of the most important in the history of science.
* Similarly, UsefulNotes/AlbertEinstein 's ''General Theory of Relativity'' and Euclid's ''Elements''.
* ''Literature/ThePrince'' by Creator/NiccoloMachiavelli.
* ''Literature/TheArtOfWar'' by Sun Tzu. Not just a book on tactics, but a way of life for some and a poetic writing as well. A true great in every way.
* ''About the War" by Carl von Clausewitz.
* ''Literature/TheCommunistManifesto'' by Creator/KarlMarx.
* ''Literature/AlsoSprachZarathustra'' by Creator/FriedrichNietzsche
[[/folder]]

[[folder:Live Action TV]]
* Jim Abrahams, Jerry and David Zucker: ''Series/PoliceSquad''.
* Creator/JJAbrams, Damon Lindelof and Carlton Cuse: ''Series/{{Lost}}''.
* Creator/AlanAlda: ''Series/{{Mash}}''
* Gerry Anderson: ''Series/{{Thunderbirds}}''.
* Creator/RowanAtkinson: ''Series/{{Blackadder}}''.
* Creator/DavidAttenborough: ''Series/LifeOnEarth'' is generally seen as the most ambitious and grandly admired of all of his nature documentaries.
* Alan Ball: ''Series/SixFeetUnder''.
* Creator/LucilleBall: ''Series/ILoveLucy''. Seeing as how it [[UrExample practically invented]] the SitCom and to this day you can't make one without borrowing from ''Lucy'', it can be seen as a MagnumOpus for the genre itself, a feat made all the more impressive by the fact that it made Ball the most powerful woman in the TV industry at a time when women weren't given much slack.
* Creator/RoseanneBarr: ''Series/{{Roseanne}}''.
* Creator/CarterBays and Creator/CraigThomas: ''Series/HowIMetYourMother''.
* Creator/DonaldBellisario: ''Series/{{NCIS}}''.
* Creator/JohnBelushi: His best comedy work was done for ''Series/SaturdayNightLive''.
* Steven Bochco and Michael Kozoll: ''Series/HillStreetBlues''.
* Mark Brazill and Bonnie and Jennie Turner: ''Series/ThatSeventiesShow''.
* Creator/MelBrooks and Buck Henry: ''Series/GetSmart''
* Creator/KenBurns ' documentary miniseries ''The Civil War''.
* Creator/DavidChase: ''Series/TheSopranos''.
* Creator/JohnCleese: Though many would name him as the most memorable member of Series/MontyPythonsFlyingCircus- and the fourth season is generally considered to be of lesser quality because he had left by then- Cleese feels his real magnum opus is Series/FawltyTowers, which he co-wrote with his wife Connie Booth. Many comedy fans and TV viewers would agree that this show is among the best (British) sitcoms ever written and one of the few that doesn't grow stale after repeated viewings.
* Creator/BillCosby: ''Series/TheCosbyShow''.
* Creator/MichaelCrawford: To most TV viewers Frank Spencer in ''Series/SomeMothersDoAveEm'' will always remains his masterpiece.
* David Croft and Jimmy Perry: They made a lot of famous sitcoms but ''Series/DadsArmy'' is the sole one held in the utmost highest regard by both the general public and the critics.
* Creator/LarryDavid: ''Series/{{Seinfeld}}''.
* ''Series/DoctorWho'': They say that every ''Series/DoctorWho'' {{Showrunner}} has an episode that encapsulates everything about their era in general, an episiode that couldn't have ever been made under anyone else. In rough order, based on fan opinion:
** Barry Letts / Terrance Dicks - ''The Daemons''
** Phillip Hinchcliffe / Creator/RobertHolmes - ''The Talons Of Weng-Chiang''
** Graham Williams / Creator/DouglasAdams - ''City Of Death'' (May have been ''Shada'' if it had ever gotten properly made).
** Creator/JohnNathanTurner / Christopher Bidmead - ''Logopolis''
*** John Nathan-Turner / Eric Saward - ''Revelation Of The Daleks'' (Though in the words of Mike Morris ''The Two Doctors'' was more encapsulating of what the Saward Era actually was, ''Revelation'' is more what it wanted to be)
*** John Nathan-Turner / Andrew Cartmel - ''The Curse Of Fenric''
** Creator/RussellTDavies - ''The End Of Time''. Other candidates include "Midnight" as Davies' best episode (as it expertly deconstructs all of ''Doctor Who'' and its tropes), and "Army of Ghosts/Doomsday" as the greatest traditional "Who" adventure under his tenure, particularly due to how well it emphasizes the emotional relationship between the Doctor and Rose. Outside of "Who", there's also ''[[TorchwoodChildrenofEarth Children of Earth]]'' for Davies. Easily the most acclaimed series of ''Torchwood'', and perhaps the most mature run of episodes of the [=NuWho=] universe.
** Creator/StevenMoffat - "The Day of the Doctor" is a strong contender. As a writer in the RTD era though, probably "Blink" tied with "The Empty Child"/"The Doctor Dances".
** ''Series/DoctorWho'' writers by themselves:
*** Creator/TerryNation - ''Genesis Of The Daleks''
*** Christopher Bidmead - ''Frontios''
*** Creator/RobertHolmes - ''The Caves Of Androzani''
*** Creator/PaulCornell - "Human Nature"/"The Family of Blood"
* Jeremy Dyson, Mark Gatiss, Steve Pemberton and Reece Shearsmith: ''Series/TheLeagueOfGentlemen''.
* Creator/BenElton - His scripts for the second, third and fourth seasons of ''Series/{{Blackadder}}''.
* Creator/MartyFeldman: ''Series/{{Marty}}''.
* Creator/DawnFrench: ''Series/TheVicarOfDibley''
* Creator/MarkGatiss and Creator/StevenMoffat: ''Series/{{Sherlock}}''
* Creator/RickyGervais and Creator/StephenMerchant: ''Series/TheOfficeUK''.
* Creator/VinceGilligan: ''Series/BreakingBad'' which is generally placed alongside ''Series/TheSopranos'' and ''Series/TheWire'' as the best television drama ever. In fact, [[WordOfGod Gilligan]] [[ToughActToFollow is firmly convinced that he will never, in the rest of his career, ever be able to match it.]] For a specific episode, "Ozymandias" (also an MO for director Creator/RianJohnson and writer Moira Walley-Beckett), the antepenultimate episode, received unprecedented critical and public acclaim, being described by critics as one of the greatest hours of television ever aired and, a year and over 50,000 votes later, is still holding a perfect 10 on Website/IMDb. Vince Gilligan, before the episode aired referred to it as the greatest episode they ever made and will ever make. Audiences agreed.
* Creator/KelseyGrammer: The best sitcom he ever acted in was ''Series/{{Frasier}}''
* Rob Grant & Doug Naylor: ''Series/RedDwarf''.
* Creator/DanHarmon: ''Series/{{Community}}''.
* Creator/LennyHenry: ''Series/{{Chef}}''.
* Creator/JimHenson: ''Series/TheMuppetShow'' and ''Series/SesameStreet''. ''Sesame Street'' is still seen as the best educational children's show in the world and the main inspiration for all the similar shows that followed. But it was ''The Muppet Show'' that proved that adults would be able to enjoy watching a puppet show as well.
* Creator/BennyHill: ''Series/TheBennyHillShow''. Though mostly outside the United Kingdom, because in his home country Hill is still seen as somewhat of an embarrassing comedy superstar.
* Creator/JoelHodgson and Creator/MikeNelson: ''Series/MysteryScienceTheater3000''.
* Daniel Knauf: ''Series/{{Carnivale}}''.
* Anthony Jay and Jonathan Lynn: ''Series/YesMinister''.
* Creator/BobLawrence: ''Series/{{Scrubs}}''
* Creator/NormanLear: ''Series/AllInTheFamily'' (the first 8 seasons before he left anyway)
* Roger Luck and Peter Law: ''Series/SpittingImage''.
* Creator/DavidLynch and Creator/MarkFrost: Of their television work ''Series/TwinPeaks'' has been hailed as their masterpiece.
* PatrickMCGoohan and George Markstein: ''Series/ThePrisoner''.
* Creator/RikMayall and Creator/AdeEdmondson: ''Series/TheYoungOnes'' and ''Series/{{Bottom}}''.
* David Milch: ''Series/{{Deadwood}}''.
* Creator/SpikeMilligan, Harry Secombe, Creator/PeterSellers, Michael Bentine: ''Series/TheGoonShow''.
* Creator/MontyPython: For most of the comedians of this comedy team ''Series/MontyPythonsFlyingCircus'' is the best and most influential show they ever created. The most generally admired, popular and famous sketch is the ''Dead Parrot''. It's so iconic that a 1989 compilation video of the series was even titled ''Parrot Sketch Not Included''. Many fans hoped it was joke, but the sketch was indeed missing.
* Creator/RonaldDMoore: The re-imagined ''Series/{{Battlestar Galactica|Reimagined}}''
* Creator/DennisPotter: ''Series/TheSingingDetective''.
* Jack Pulman: ''Series/IClaudius''.
* Creator/GeneRoddenberry: ''Series/StarTrek''.
* Creator/JenniferSaunders: ''French & Saunders'', ''Series/AbsolutelyFabulous''.
* Creator/JerrySeinfeld: ''Series/{{Seinfeld}}''.
* Creator/RodSerling: ''Series/TheTwilightZone''.
* Creator/DavidSimon: ''Series/TheWire''.
* Creator/AaronSorkin: ''Series/TheWestWing''.
* Creator/JMichaelStraczynski: ''Series/BabylonFive''
* Creator/RobThomas: ''Series/VeronicaMars''
* Bonnie & Terry Turner: ''Series/ThirdRockFromTheSun'' and ''Series/ThatSeventiesShow''.
* ''Series/TheTwoRonnies'': The ''Four Candles'' sketch.
* Creator/VanKootenEnDeBie: Viewers choose their ''Gé and Arie Temmes'' sketch from 1985, about two brothers in old age who claimed to have an amazing heroic WorldWarTwo experience as the best sketch they ever did.
* Creator/PaulWhitehouse and Charlie Higson: ''Series/TheFastShow''.
* Creator/DickWolf: The ''Franchise/LawAndOrder'' franchise.
[[/folder]]

[[folder:Pop Musicians (crooners, pop, soul, hiphop, reggae and rock)]]
* Music/{{Abba}}: ''Dancing Queen'' is their most well loved track, usually the opener on any Abba retrospective and included on any hit compilation.
* Music/{{ACDC}}'s ''Music/BackInBlack''. After their original singer [[TheBandMinusTheFace Bon Scott died]] they were first thinking about quitting. Then they instead hired Brian Johnson (who Scott was a huge fan of) and recorded a new album in only a few months. It produced some of their most famous songs, like "Hells Bells", "You Shook Me All Night Long" and the title track. It is the best selling rock album of all-time and second overall behind Michael Jackson's ''Thriller''.
* Music/BryanAdams' ''Reckless'' or ''Cuts Like A Knife''.
* Music/AliceInChains, best album was ''Dirt'' according to most fans. Mainly, because of the perception that the whole album was a huge confession and cry for help about Layne Staley's drug addiction, which he later died from.
* Music/{{Amorphis}}, it's ''Tales From the Thousand Lakes''. ''Elegy'' is also regarded as a classic in '90s Finnish heavy metal. For the newer fans, ''Skyforger'' tends to stand out.
* Music/ToriAmos' ''Little Earthquakes''.
* Music/AnaalNathrakh: ''Hell is Empty...and All the Devils are Here''
* Music/ArcadeFire: Fans generally agree that either ‘’Funeral’’ or ‘’The Suburbs’’ are the band's greatest achievements. Many argue that their soundtrack to ''Her'' is their best work, also.
* Arcturus' album ''La Masquerade Infernale'' is considered by many fans to be one of the best examples of avant garde metal.
* {{Music/Autechre}} best work according to many fans is ''Tri Repetae'' with their follow up ''LP5'' coming in close second. This is mainly because fans believe those two albums were the perfect middle between their earlier works like Amber and their extreme later works like ''Draft 7.30''.
* Music/BarenakedLadies: "Stunt", at least during the time that Steve Page was with the band. "Gordon" and "Barenaked Ladies Are Me" both have minority support, though.
* Music/{{Bathory}}: ''Blood Fire Death''
* Music/{{Bauhaus}} produced four great albums in their short career, but their debut single "Bela Lugosi's Dead" (which was never part of an album to begin with) is still considered their masterpiece. The fact that it almost single-handedly invented {{Goth}} has added to the legend.
** Interestingly, the song was written as a tongue-in-cheek parody aimed at the post-punk proto-Goth scenesters who frequented Bauhaus shows; and was not particularly well-liked by the band for most of their existence.
* Music/TheBeachBoys: ''Music/PetSounds''.
** Music/{{Smile}} [[WhatMightHaveBeen might well have become this too]].
* Music/TheBeastieBoys: Their sophomore effort ''Paul's Boutique'' was so ahead of it's time (and quite a drastic departure from their previous album) that a majority of "[[MisaimedFandom fans]]", who they had reluctantly gained thanks to their former tongue-in-cheek frat boy image [[CompletelyMissingThePoint being taken seriously]], were completely polarized. It's only now been recognized as a masterpiece in later years.
** In a bit of FirstInstallmentWins, others also consider as a masterpiece debut album ''Licensed to Ill'', origin of "[[BlackSheepHit Fight For Your Right (To Party)]]" ([[CreatorBacklash the band itself has some shame of it]]).
* Music/TheBeatles: Music/SgtPeppersLonelyHeartsClubBand is a historical milestone in pop history, both critics and the general public agree. However, many musicians and music critics prefer Music/TheWhiteAlbum, for the sheer diversity in style and content on an epic scale. And in recent decades Music/{{Revolver}} and Music/AbbeyRoad have been hailed as masterpieces on their own.
** Beatles songs in their own are even more difficult to pin down on one singular masterpiece. ''Strawberry Fields Forever'' seems to be placed the highest in most lists though, along with ''A Day In The Life''.
* Music/{{Beck}}: either ''Odelay'' or ''Sea Change''.
* Music/{{Bjork}}: Usually a tie between ''Music/{{Debut}}, Music/{{Post}}'' and ''Music/{{Homogenic}}''.
* Music/BlackSabbath's is generally considered to be ''Paranoid'' or ''Heaven and Hell''. Music/OzzyOsbourne says that ''Sabbath Bloody Sabbath'' was the band's pinnacle.
* Music/BlindGuardian's ''Nightfall in Middle Earth'' is not only considered to be the band's best work, but also argued to be the greatest PowerMetal album ever released.
* Music/{{Blur}}: ''Parklife''.
* Blut Aus Nord: ''The Work Which Transforms God''
* Music/DavidBowie: ''Music/TheRiseAndFallOfZiggyStardustAndTheSpidersFromMars'' may be his most iconic album, but other strong contenders are ''Music/HunkyDory'' and ''Music/{{Heroes}}''.
* Music/JacquesBrel: ''Ne Me Quitte Pas'' was voted best ''chanson'' ever by public and critics. Another strong contender for Brel's masterpiece would be ''Le Plat Pays''.
* Music/JamesBrown: His live album ''Music/LiveAtTheApollo'' is generally considered to be the best live album ever.
* Music/JeffBuckley: ''Music/{{Grace}}''.
* Music/{{Burzum}}'s third album, ''Hvis lyset tar oss'', is frequently considered their best and the defining template for the ambient black metal sub-genren. That or ''Filosofem''
* Music/KateBush's ''Hounds of Love''.
* Music/{{Can}}: ''Tago Mago'' is the one most chosen for this title, though others prefer the less bombastic ''Ege Bamyasi''.
* Music/CaptainBeefheart: ''Music/TroutMaskReplica''.
* Music/JohnnyCash: ''Music/AtFolsomPrison''
* Music/CatherineWheel have ''Ferment'' on their belt, though some may say ''Chrome'' is better.
* Music/CelticFrost: ''To Mega Therion''
* Music/TheClash: ''Music/LondonCalling''.
** Their next album ''Sandinista!'' goes even more over-the-top than London Calling and is more of their underground Magnum Opus than anything. They explore dub and electronica and even had the first white rap song, predating Blondies "Rapture" by a few months.
* Music/CocteauTwins: ''Heaven Or Las Vegas'' and ''Treasure''.
* Music/{{Codeine}}: Whose debut album ''Frigid Stars LP'' single-handedly heavily influenced the genre and completely kick-started {{Slowcore}}
** Although ''Frigid Stars'' is the album credited for pioneering slowcore, many fans view the ''Barely Real'' EP or ''The White Birch'' as their magnum opus.
* Music/{{Coldplay}} has either the EvenBetterSequel ''A Rush of Blood to the Head'' or NewSoundAlbum ''Viva La Vida''.
* Music/{{Converge}}'s fifth album, ''Jane Doe'', is considered this, although their album ''Axe to Fall'' has been called this as well.
* Music/CradleOfFilth: ''Dusk...and Her Embrace'' or ''Midian''
* Music/CreedenceClearwaterRevival with ''Cosmo's Factory''.
* Music/CrosbyStillsNash & Young: ''Déja Vu''.
* Music/TheCure's 1989 album ''Disintegration'' bridges the gap between their {{Goth}} work and their pop work, and its large number of classic songs has made it their magnum opus.
* Music/DaftPunk: ''Homework'' and ''Discovery''.
* Music/{{Darkthrone}}: ''Transylvanian Hunger'' or ''A Blaze in the Northern Sky''
* Music/DaveMatthewsBand: ''Before These Crowded Streets''.
* Deathspell Omega: ''Si Momentum Requires, Circumspice''
* Music/DefLeppard has either ''Pyromania'' or ''Hysteria'' (or possibly both) as their greatest work.
* Music/{{Deftones}}: ''White Pony'', while some fans suggest that ''Around the Fur'' was their best work.
* Music/DepecheMode's ''Violator'' is generally considered their finest album by the media, the band, their associates, and a sizable chunk of their fanbase, as well as being their most successful album with their highest-charting and best-known singles. It's not uncommon for their live setlist to be at least 25% ''Violator'' songs.
* Music/DerekAndTheDominos: ''Music/LaylaAndOtherAssortedLoveSongs''.
* The Dillinger Escape Plan's debut album, ''Calculating Infinity'', is considered this, much to the [[ToughActToFollow band's own chagrin]].
* Music/DimmuBorgir: ''Stormblast'' or ''Enthrone Darkness Triumphant''
* Music/DireStraits: ''Brothers In Arms''.
* Dissection: ''Storm of the Light's Bane''
* Music/DixieChicks have two of the strongest received country albums of the late 1990s: ''Wide Open Spaces'' and ''Fly''. Their strongest received album altogether, though, is 2002's ''Home'', often cited as the best of the decade and sometimes even one of the best country albums of all time.
* Music/TheDoors: Generally their debut album and ''L.A. Woman'' have been named their masterpiece.
* Music/NickDrake: ''Pink Moon''.
* Music/DreamTheater's magnum opus is either "Metropolis Part 1: The Miracle and the Sleeper" or "A Change of Seasons". Both are grand, epic progressive pieces that truly exemplify the band's gimmick. Alternatively, the Dance of Eternity is their magnum opus based solely on the immense musical complexity of the track - and that said about a band whose use of UncommonTime is through the roof.
* Music/BobDylan: ''Music/Highway61Revisited'', ''Music/TheFreewheelinBobDylan'', ''Music/BloodOnTheTracks'' and ''Music/BlondeOnBlonde are often called his magnum opus. When fans and critics have to pin it down to one they usually pick ''Highway 61 Revisited''.
* Music/EarthWindAndFire: ''September''
* Music/TheEagles: ''Music/HotelCalifornia'', both the album, as well as the song.
* Music/{{Eminem}}: ''The Marshall Mathers LP'' is Eminem's most critically and commercially acclaimed album and the only one popping up in general ''best albums of all time'' lists. The one song that is considered to be his masterpiece is ''Lose Yourself''.
* Music/{{Emperor}}: ''In the Nightside Eclipse''.
* Music/BrianEno: ''Music/HereComeTheWarmJets''.
* Music/FaithNoMore: ''Angel Dust'', widely considered a landmark of alternative rock with its [[NeoclassicalPunkZydecoRockabilly weird genre mixtures]]. (though others go for predecessor ''The Real Thing'', which has their SignatureSong "Epic").
* Music/FallOutBoy: ''Take This To Your Grave''.
* Music/FiveIronFrenzy wrote a song, "So Far, So Bad", humorously claiming that the greatest song they ever wrote was going to remain unpublished because [[TheMan the record labels and radio stations]] didn't like it. ''"We were gonna have our glorious exit, / an admonition and an encore. / We were gonna make a point to the whole world / but no one wants to hear it anymore."''
** In at least one live show, Reese Roper jokingly claimed that "Pootermobile" was their magnum opus. For the record, [[http://www.youtube.com/watch?v=3Pz7lf23Ip8 this is "Pootermobile".]]
* Music/{{Fugazi}}: ''13 Songs''.
* Music/TheFugees: ''Music/TheScore''.
* Music/TheFugs: ''The Fugs' Second Album''.
* Music/SergeGainsbourg: ''Music/HistoireDeMelodyNelson''.
* Music/MarvinGaye: ''Music/WhatsGoingOn ?''.
* Music/{{Gorgoroth}}: ''Under the Sign of Hell''
* Music/{{Gorillaz}}' ''Demon Days'' is their highest acclaimed album but in a case of personal preference for many fans it's ''[[FirstInstallmentWins Gorillaz'']].
* Music/GrandmasterFlashAndTheFuriousFive: ''Music/TheMessage''.
* Music/GreenDay: ''Music/{{Dookie}}'' or ''Music/AmericanIdiot''.
* Music/GunsNRoses had "Sweet Child O' Mine", "Welcome to the Jungle" and "November Rain". Album is [[FirstInstallmentWins incontestably]] ''Appetite for Destruction'' (where both "Sweet Child" and "Jungle" originate).
* Music/GeorgeHarrison: ''Music/AllThingsMustPass''.
* Music/PJHarvey: ''Music/ToBringYouMyLove'' and ''Music/StoriesFromTheCityStoriesFromTheSea''.
* Music/JimiHendrix: ''Music/AreYouExperienced'' and ''Music/ElectricLadyland''.
* Music/HuskerDu: ''Zen Arcade'' and ''New Day Rising''. Both are brimming with excellent tunes and respectively set the precedents for post-hardcore and alternative rock.
* Music/{{Immortal}}: ''At the Heart of Winter''
* Music/IronMaiden's is [[BrokenBase debatably]] ''The Number of the Beast'', although ''Piece of Mind'' is usually close behind (it's even the favorite by leader Steve Harris and singer Music/BruceDickinson). ''Powerslave'' is also a popular choice (though it's a point of contention whether the 4 less-known tracks are as good as the four hits). As far as songs go, the popular vote is typically on "[[AudienceParticipationSong Fear of the Dark]]", "Hallowed Be Thy Name", or "[[EpicRocking Rime of the Ancient Mariner]]".
* Music/MichaelJackson: ''Music/{{Thriller}}'' will often be named his best album and being the best-selling record of all time it's difficult to dispute its excellence. However some fans prefer Music/OffTheWall for being more musically strong in content.
** Jackson's magnum opus as a song is ''Billie Jean''. Even Music/{{Usher}} said: "I aspire to one day write something as good as that."
* Music/JethroTull: "Aqualung''.
* Music/BillyJoel has ''Piano Man'' and ''The Stranger''.
* Music/JanisJoplin: ''Music/CheapThrills''.
* Music/JoyDivision: ''Music/UnknownPleasures'' and ''Music/{{Closer}}'' are their only studio albums and discussion still continues which one of these is their magnum opus.
* Music/{{Kataklysm}} fans are divided on which of the band's best albums are, but ''Sorcery'', ''Temple of Knowledge'', ''Serenity in Fire'', and ''Epic: The Poetry of War'' are the most commonly stated albums to be their best.
* Music/CaroleKing: ''Music/{{Tapestry}}''.
* Music/KingCrimson: ''Music/InTheCourtOfTheCrimsonKing'', ''Red'' and ''Discipline'' are among the more frequent contenders.
* Music/KitchensOfDistinction have one of the most acclaimed albums of 1992, ''The Death Of Cool'' and is probably one of the most underrated albums of the 1990s.
* Music/{{Korn}} albums are highly debated among fans. But it usually comes down to their ''Self-Titled'' album, ''Life is Peachy,'' ''Follow the Leader'', or ''Untouchable''. But if you want the opinion of a band member, Jonathan Davis claims ''Untouchable'' was their masterpiece.
* Music/{{Kraftwerk}}: ''Music/TheManMachine''.
* Music/JohnLennon: Usually a tie between ''Music/JohnLennonPlasticOnoBand'' and ''Music/{{Imagine}}''.
* Music/LedZeppelin: Their [[NoTitle untitled]] fourth album (often called ''Led Zeppelin IV'') is considered their most accomplished.
** In a case of MagnumOpusDissonance, the band actually considered ''Physical Graffiti'' (singling out the song "Kashmir") their finest artistic accomplishment, if only for the GenreRoulette.
** This is the same case with songs. "StairwayToHeaven" is obviously their best known track, but they themselves view "Kashmir" as their magnum opus.
* Music/{{Love}}: ''Forever Changes''. In fact, frontman Arthur Lee was deliberately aiming for this trope, thinking he was going to die.
* Music/{{Madonna}}: Her critically most acclaimed albums are ''Music/LikeAPrayer'' and ''Music/RayOfLight''.
* Music/ManicStreetPreachers have ''The Holy Bible'' as their magnum opus.
* Music/BobMarley: ''Music/ExodusAlbum''. His compilation album ''Music/{{Legend}}'' is often named the quintessential Bob Marley/reggae album to own, because it contains all his biggest hits.
* Music/CurtisMayfield: The soundtrack to the film ''Film/{{Superfly}}''.
* Music/{{Mayhem}}'s first "proper" album, ''De Mysteriis Dom Sathanas'', was for a long time considered their best (not just of the band, but of BlackMetal as a genre), but following the release of their fourth album ''Ordo Ad Chao'', disputes began to develop.
*** Music/{{Marduk}}: ''Opus Nocturne''
* Music/TheMarsVolta fans consider ''De-Loused in the Comatorium'' their best work, while ''The Bedlam in Goliath'' would be their most critically acclaimed album because of its slightly more mainstream sound.
* Music/MC5: ''Kick Out The Jams''.
* Music/PaulMcCartney: His debut album.
* Music/SarahMcLachlan 's ''Fumbling Towards Ecstasy''
* Music/MeatLoaf: ''Music/BatOutOfHell''. For songs, either the title track or ''"Paradise By The Dashboard Light"'' depending on your taste in music. The fanbase is generally split in opinion.
* Music/{{Megadeth}}: ''Peace Sells...But Who's Buying?'', ironically released the same year as ''Master of Puppets'' and ''Reign In Blood''. ''Rust In Peace'', though, is often held up at the same level as ''Peace Sells...'', mostly ending up a matter of personal preference.
* If you ask a Music/{{Meshuggah}} fan what the band's finest work is, chances are a lot of them will point to ''obZen'', [[FollowTheLeader despite the fact its sound became redundant after it got imitated by hundreds of other bands.]]
* Music/{{Metallica}}'s ''Master of Puppets'', although the self-titled album, ''...And Justice for All'' and ''Ride the Lightning'' have plenty of fans as well. ''Master of Puppets'' is generally considered by critics to be the greatest heavy metal album ever recorded, or at least very close to it.
** [[WordOfGod Lars Ulrich]] has said that he considers ''.....And Justice For All'' to be their best work.
*** And most fans will tell you [[http://www.youtube.com/watch?v=WM8bTdBs-cw ''One'']] or Blackened is the best song on the album.
* Music/JoniMitchell: ''[[Music/BlueJoniMitchellAlbum Blue]]''
* Music/AlanisMorissette : ''Music/JaggedLittlePill''
* Music/{{Motorhead}} have ''Music/AceOfSpades''.
* Music/MyBloodyValentine's ''Loveless''. Kevin Shields worked on that thing for two years and nearly bankrupted Creation Records.
* Music/{{Nas}}' debut album, ''Illmatic''.
* Music/TheNational has ''Boxer'', ''High Violet'', ''Alligator'' and ''Trouble Will Find Me''.
* Music/NewKingdom: ''Paradise Don't Come Cheap''.
* Music/NewOrder: Their hit song ''Blue Monday''.
* Music/{{Nightwish}}: ''Oceanborn'' is rather consistently regarded as ''the'' Nightwish album by older fans, while ''Once'' or ''Dark Passion Play'' are their most well-known and successful.
* Music/NineInchNails: ''The Downward Spiral'' is still the most oft-cited magnum opus of Trent Reznor, though, all of NIN's other albums have their fans, particularly ''The Fragile''. Except probably ''With Teeth'', which remains something of a bastard child, though some will admit that it's a good album to introduce people to the band with.
* Music/{{Nirvana}}: ''Music/{{Nevermind}}''.
* Music/{{Oasis}}: ''(What's the Story) Morning Glory''. Though [[FirstInstallmentWins its predecessor]], ''Definitely Maybe'', is just as popular.
* [[ToughActToFollow While they made many good albums]] Music/PearlJam knew that their first album ''Ten'' is theirs. But for a good reason. Although Eddie Vedder has said that he can't listen to the early albums anymore.
* Music/{{Opeth}}'s ''Blackwater Park'' is considered by both the band and the fanbase as their magnum ''Opeth''.
* Music/{{Parliament}}: ''Mothership Connection''.
* Music/DollyParton: ''Music/CoatOfManyColors''.
* Music/LizPhair: ''Music/ExileInGuyville''.
* Music/PinkFloyd's ''Music/TheDarkSideOfTheMoon''- the third best-selling album of all time- although some would contest ''Music/TheWall'' (which, regardless, is undoubtedly the magnum opus of Floyd's Roger Waters). other candidates are ''Music/ThePiperAtTheGatesOfDawn'' (with Syd Barrett at the helm) and ''Music/WishYouWereHere'' (the favorite album of David Gilmour and Richard Wright).
* Music/ThePixies: ''Music/SurferRosa''.
* Music/IggyPop: ''Music/LustForLife'' and ''Music/TheIdiot''.
* Music/ElvisPresley: His self-titled album ''Music/ElvisPresleyTheAlbum'' (1956). When talking about individual songs ''Heartbreak Hotel'' is held in high regard.
* Music/{{Prince}}: [[Film/PurpleRain Purple Rain]] and/or ''Sign o' The Times''.
* Music/TheProdigy: ''Music/TheFatOfTheLand''.
* Music/PublicEnemy: ''Music/ItTakesANationOfMillionsToHoldUsbAck''.
* Music/{{Pulp}} have their magnum opus in 1995's ''Different Class''
* Music/{{Queen}}: The song ''Bohemian Rhapsody'', not coincidentally from what many consider to be their best album: ''Music/ANightAtTheOpera''.
* Music/QueensOfTheStoneAge: ''Songs For The Deaf''.
* Music/{{Radiohead}}’s Music/OKComputer''. Though there's a bit of a BrokenBase over whether it's actually either ''The Bends'' or ''Music/KidA'' that counts as their magnum opus.
* Music/RageAgainstTheMachine: either their ''Self-Titled'' album is their best work, or ''Evil Empire''. While ''Battle for Los Angeles'' is their most critically acclaimed album.
* Music/TheRamones: ''Music/{{Ramones}}''.
* Music/RedHotChiliPeppers fans will either tell you that ''Blood Sugar Sex Magik'' is their best album, or ''Californication''.
* Music/RedHousePainters have about 3 albums considered to be their masterwork. For most critics and fans the first SelfTitledAlbum (retitled ''Music/{{Rollercoaster}}'' to help distinguish between this and the sister self-titled, ''Bridge'') and ''Ocean Beach''. However, 1997's ''Music/SongsForABlueGuitar'' has also been considered the band's best work, but a lot of critical opinion on it tends to split between incredibly brilliant to SoOkayItsAverage.
** The only reason why ''Songs For A Blue Guitar'' got such seemingly lukewarm reviews is because it isn't a true RedHousePainters album. It was intended to be a Mark Kozelek solo album but was slapped with the RHP moniker in hopes it would sell more. All fans and critics tend to agree, however, that the album is Kozelek's best solo album, surpassing everything he previously did with RHP and anything he would later do with Sun Kil Moon.
** Sun Kil Moon have 2 albums that are contenders for the "magnum opus" label, ''Ghosts Of The Great Highway'' and ''April''.
* Music/LouReed: ''Music/{{Transformer}}''.
* Music/TheResidents: Often a tie between ''Music/ThirdReichAndRoll'' and ''Music/TheCommercialAlbum''.
* Music/TheRollingStones: ''Music/ExileOnMainSt'' is often called their magnum opus, though ''Music/{{Aftermath}}, Music/StickyFingers'' and ''Music/BeggarsBanquet'' are all a close second.
* Music/RunDMC: ''Music/RaisingHell''.
* Music/{{Rush}}: ''Music/MovingPictures'' is generally considered theirs.
** A strong case can also be made for ''2112'' for obvious reasons. [[CanadaEh This is a rather large feud among fans, and likely the only feud among Rush fans]].
*** Other strong contenders include ''Power Windows'', ''Hemispheres'', ''Permanent Waves'', and the latest, Music/ClockworkAngels. Leads to MagnumOpusDissonance, as drummer & lyricist Neil Peart thinks their best album is ''Clockwork Angels''.
* Sacramentum: ''Far Away From the Sun''
* Music/{{Sade}}'s ''Love Deluxe''.
* Samael: ''Ceremony of Opposites''
* Music/ScarSymmetry has ''Holographic Universe'', widely regarded as one of the best MelodicDeathMetal albums of the late 2000s.
* Music/GilScottHeron: ''Music/TheRevolutionWillNotBeTelevised''.
* Music/TheSexPistols: ''Music/NeverMindTheBollocksHeresTheSexPistols''.
* Music/TupacShakur, as well as his fans, consider ''Me Against the World'' his best work.
* Music/{{Sigh}}: ''Scorn Defeat'' or ''Imaginary Sonicscape''
* Music/SigurRos' ''Ágætis byrjun''.
* Music/PaulSimon: ''Music/{{Graceland}}''.
* Music/SimonAndGarfunkel: ''Music/BridgeOverTroubledWater''.
* Music/FrankSinatra: ''Music/InTheWeeSmallHours''.
* Music/{{Slint}}'s ''Spiderland'' almost single-handedly started the whole PostRock movement.
* Music/{{Slayer}}'s ''Reign in Blood''.
** ''Seasons in the Abyss'' has it's fans as well.
* Music/TheSmashingPumpkins third album, ''Music/MellonCollieAndTheInfiniteSadness'', is generally considered by critics and fans to be their greatest work. That, or ''Siamese Dream''.
* Music/PattiSmith: ''Music/{{Horses}}''.
* Music/TheSmiths' ''The Queen Is Dead'', though Morrissey and Marr both insist that their last album, ''Strangeways, Here We Come'' was their best.
* Music/SonicYouth: ''Music/DaydreamNation''.
* Music/{{Soundgarden}}'s ''Superunknown'', a bridge between their heavy metal and experimental leanings.
** ''Badmotorfinger'' can also be this for fans that prefer their earlier albums.
* Music/BruceSpringsteen's big breakout, ''Born to Run'' is generally regarded as his best, although ''Born in the U.S.A.'' was more successful.
* Music/TheStoneRoses have ''[[SelfTitledAlbum The Stone Roses]]''
* Music/TheStooges: ''Music/RawPower''.
* Music/TheStrokes: ''Music/IsThisIt''.
* Music/SufjanStevens' is ''Illinois''. It was the album that made him a superstar of the indie scene, was (according to Metacritic) tied for the position of most-critically-praised album of 2005, and is still widely considered one of the best of that decade.
* Music/{{Suffocation}}: Their debut ''Effigy of the Forgotten'', which single-handedly created and set the direction of Brutal DeathMetal, as well as re-writing the rules for TechnicalDeathMetal and even laying the groundwork for Slam Death (and, after a fashion and a few mutations, {{Deathcore}}). Although a few give the nod to their third album, ''Pierced from Within'', which shows them at the peak of their songwriting and technical virtuosity, along with one of the best production jobs of their career.
* Music/TalkingHeads' ''Music/RemainInLight'', one of the great albums of the PostPunk period and perhaps the band's greatest achievement. Meanwhile, ''Film/StopMakingSense'' is considered the greatest concert film and many fans prefer the live versions of songs from the film's soundtrack over the studio versions.
** Other contenders include ''Fear Of Music'' and the double live album ''The Name Of This Band Is Talking Heads''.
* Music/{{Tool}} has ''Lateralus''. Song ''and'' album are both considered this.
* Music/PeterTosh: ''Music/LegalizeIt''.
* {{Music/Underworld}}: ''Beaucoup Fish''.
* Music/{{U2}}: Generally considered the 'American' sounding ''Music/TheJoshuaTree'', but some consider it the 'European' sounding ''Music/AchtungBaby''.
* Music/VelvetUnderground's ''Music/TheVelvetUndergroundAndNico'' is usually cited as their greatest work, not to mention the inventor of all non-mainstream rock.
* Music/{{Venom}}: ''Welcome to Hell''
* Music/TomWaits: ''Music/ClosingTime''.
* Music/{{Weezer}}: ''[[SelfTitledAlbum The Blue Album]]'' or ''[[VindicatedByHistory Pinkerton]]''
* Music/KanyeWest: The critically acclaimed ''Music/MyBeautifulDarkTwistedFantasy'', which got perfect or near perfect reviews from pratically ''everyone'' upon its release (with its Metacritic score being a rare high of 94) and it ended up either very high on or topping a lot of end of year best-of lists.
** And ''All of the Lights (Interlude)''/ ''All of the Lights'', from the above album, is widely considered to be one of the greatest songs he's ever done.
* Music/TheWhiteStripes: ''Music/{{Elephant}}''.
* Music/TheWho has several candidates, ''Music/{{Tommy}}'' - the first RockOpera to be a mainstream hit, ''Live At Leeds''- a live album considered to be one of, if not ''the'' best live rock albums ever (and the newer version has most of ''Tommy'' in there), ''Who's Next'', the source of 3 of their biggest hits and codifying the use of synthesizers in mainstream music, and ''Quadrophenia'', a fan favorite.
** Pete Townshend has called ''Quadrophenia'' his Magnum Opus.
* Music/AmyWinehouse: ''Music/BackToBlack''.
* Music/StevieWonder: ''Music/SongsInTheKeyOfLife''.
* Music/WuTangClan, their debut ''Enter the Wu-Tang: 36 Chambers'' is still considered their definitive collaborative album; of side projects, GZA's ''Liquid Swords'' or Raekwon's ''Only Built 4 Cuban Linx...'' are typically cited as the masterpieces
* Music/{{XTC}}: ''Music/{{Skylarking}}''
* Music/{{Yes}} had either the prog-rock masterpiece ''Close to the Edge'', or the album that brought them back from irrelevancy and reinvented them as a pop-rock group, ''90125''. There is a massive BrokenBase among fans regarding this question (though some fans TakeAThirdOption and regard them both as the high points of two vastly different artistic periods of the band)
* Music/DwightYoakam released two of the most critically acclaimed albums of the late 80s and early 90s, ''Buenas Notches From A Lonely Room'' and ''This Time''. Both albums are extremely influential even outside their genre. Another album, ''3 Pears'', is getting this type of recognition for his latter-half career.
* Music/NeilYoung: ''Music/{{Harvest}}''.
* Music/FrankZappa: Zappa created such a versatile and ever-changing body of work that even his fans tend to differ what his best album would be? The most frequent heard candidates are ''Music/FreakOut'', ''Music/WereOnlyInItForTheMoney'', ''Uncle Meat'' and ''One Size Fits All''. Among the general public it tend to be his best-selling records ''Music/OverNiteSensation'', ''Music/{{Apostrophe}}'' and ''Music/SheikYerbouti'', whom all contain pretty much straight-out rock songs and instrumentals and ''Music/HotRats'', which is mostly instrumental and free of all the stuff non-Zappa fans tend to feel cringy about: bawdy jokes, bizarre stuff, satire, political comments and sudden experimentations. Rock critics usually choose for ''Freak Out'', ''We're Only In It For The Money'', ''Uncle Meat'' and/or ''Hot Rats'' whenever they make a general list of the greatest albums of all time and happen to include Zappa.
[[/folder]]

[[folder:Music Videos]]
* After all those years the only music video to have risen to become an audience and critics' favorite is ''Music/{{Thriller}}'' by Music/MichaelJackson, directed by Creator/JohnLandis. It revolutionized the art form and surprised every viewer in a way that will probably never occur again with the same universal impact. Even Jackson tried to surpass it with more and more epic music videos, like ''Bad'', ''Smooth Criminal'' and ''Black or White'', but none ever got the same global acclaim from all audiences, both public as well as critics.
[[/folder]]

[[folder:Pinball]]
* Either ''Pinball/TheAddamsFamily'' or ''Pinball/TheTwilightZone'' for Creator/PatLawlor, depending on personal preference.
* ''Pinball/Terminator2JudgmentDay'' for Creator/SteveRitchie.
* ''Pinball/TalesFromTheCrypt'' for Creator/JohnBorg.
* ''Pinball/TheLordOfTheRings'' for Creator/GeorgeGomez.
[[/folder]]

[[folder:Sports]]
* Hakeem Olajuwon's 1993-94 season, winning the MVP, Finals MVP and Defensive Player of the Year awards.
* Tim Duncan's 2002-03 season, especially the finals series against the New Jersey Nets.
* Shaquille O'Neal's 1999-2000 season, in which he captured the MVP, All-star Game MVP and Finals MVP.
* Georges St. Pierre's TKO victory against Matt Hughes.
** How can you mention Matt Hughes without citing his victory over Frank Trigg at UFC 52? Matt survived an accidental low blow, a pummeling, a near submission, then got up, PICKED UP TRIGG AND RAN ACROSS THE OCTAGON WITH HIM, threw him down, returned the pummeling, and got a submission of his own.
*** Because his comeback victory over BJ Penn (a man who beat Hughes once before) is more impressive. Hughes was behind on the scorecards, getting pummeled standing up and Penn's brazilian jiu-jitsu was giving Hughes problems on the ground. And yet, Hughes finished Penn late in the fight through sheer determination.
* Chuck Liddell's first victory over Randy Couture.
* The Los Angeles Lakers 1971-1972 season, winning 33 in a row and grabbing the title.
* Michael Jordan and the Chicago Bulls in the 1995-96 season, becoming the first team in NBA history to win 70 regular season games (they won 72 and only lost 10) and cruising to Jordan's 4th title.
* LeBron James' 2011-12 season, winning the MVP and finals MVP.
* World champion chess player (and world-champion-caliber {{Jerkass}}) Bobby Fischer produced the win dubbed by commentators "The Game of The Century" when he was ''13 years old''.
* Michael Phelps at the 2008 Summer OlympicGames in Beijing, setting the record for most golds in one Olympics (8), taking gold in every event he was in.
* In [[TheBeautifulGame Association Football]], many players, coaches and managers are considered to have been so influential on their teams that they are deemed the equivalent of cinema's "auteurs". The crowning achievements of their teams can be considered to be their magnum opus:
** For Sir Alex Ferguson, a well-remembered British manager in history, it is the 1999 league/cup/European Cup treble with Manchester United.
** For Pep Guardiola and Lionel Messi's Barcelona, it is the 5-0 ("la manita") demolition of Real Madrid in 2010. This mirrored the achievement of Johan Cruyff, Barcelona's most influential player and manager, whose 5-0 defeat of Madrid in 1974 set the seeds for Barcelona's future success.
** The 1967-68 season is seen as this for George Best of Northern Ireland. Widely regarded as the greatest player to never play at a world cup and one of the greatest period, he rose to the forefront at Manchester United during that season, leading the team to the European Cup, becoming the fist english team to do so, and winning the equivalent of the european player of the year. Sadly he would waste his talent on booze and gambling in the years after.
** The Brazilian team that won the [[TheWorldCup 1970 World Cup]] is often considered the best squad ever assembled.
* In 2007, Peyton Manning finally shook off the cobwebs and led his [[UsefulNotes/AmericanFootball Indianapolis Colts]] to a Super Bowl victory after ''years'' of [[EveryYearTheyFizzleOut playoff mishaps]].
* Super Bowl XLII. On one side, the undefeated Patriots, who'd soundly thrashed every team before them. On the other, the New York Giants, who came out of nowhere with an unexpected postseason run. The Giants proceeded to win the game in what's generally considered one of the [[CrowningMomentOfAwesome defining moments]] of UsefulNotes/AmericanFootball.
* UsefulNotes/MuhammadAli's brilliant tactic to beat seemly invincible "Big" George Foreman in Zaire (Congo), 1974.
* Sugar Ray Leonard making the feared Roberto Duran quit in the middle of their rematch, after losing to him in their first boxing match.
* [[http://www.dailymotion.com/video/xw74ca_formula-1-donington-1993-start_sport The first lap]] of the 1993 European Grand Prix for [[FormulaOne Ayrton Senna]].
* EddyMerckx' entire cycling career is a magnum opus, never surpassed in the dazzling amount of victories by any other cyclist!
[[/folder]]

[[folder:Theme Parks]]
* Ride/UniversalStudios
** For park fans, to date nothing has been able to top ''Kongfrontation'' in terms of originality, production value and realism. Especially when it first opened.
** ''Spider-Man'' and ''Harry Potter and the Forbidden Journey'' (both in the Islands of Adventure park at Universal Flordia) are alternatively considered this by many other fans due to, like Kongfrontation before them, both rides pioneering new, unproven ideas an technologies.
* For the Ride/DisneyThemeParks, the original ''Ride/PiratesOfTheCaribbean'' ride is considered Imagineering's finest achievement in ride design.
* [[{{Ride/SixFlags}} Six Flags's]] crowning achievement would be X (now X2), not only for being the first multidimensional coaster ever made, but also one of the very few of its kind.
[[/folder]]

[[folder:Video Games]]
!!Games
* Either the ''Franchise/SuperMarioBros'' or ''Franchise/TheLegendOfZelda'' series for Creator/ShigeruMiyamoto. As for individual games, there are numerous candidates from either series.
** For Mario, while many fans will be quick to point to ''VideoGame/SuperMarioBros3'', Shigeru Miyamoto himself has said that ''VideoGame/SuperMarioWorld'' is [[http://www.joystiq.com/2010/11/09/super-mario-world-is-miyamotos-favorite-mario-game/ his favorite Mario game.]]
** Most critics look to ''[[VideoGame/TheLegendOfZeldaOcarinaOfTime Ocarina of Time]]'' as the MagnumOpus of the ''Zelda'' series (despite that annoying [[StopHelpingMe fairy]] and [[ShallIRepeatThat owl]]), and the title holds top honors on a vast number of professional "Best Games of All Time" lists. The pinnacle of the series is extremely debated among fans. ''[[VideoGame/TheLegendOfZeldaALinkToThePast A Link to the Past]]'' is considered a tough contender, and ''[[VideoGame/TheLegendOfZeldaMajorasMask Majora's Mask]]'' has had a sudden outbreak in popularity. Either way, Eiji Aonuma considers ''Ocarina of Time'' itself his favorite game, to the point that he expressed desire to surpass it with a new game someday.
* Hironobu Sakaguchi's ''Franchise/FinalFantasy'' series. Out of all the games, he considers ''VideoGame/FinalFantasyIX'' to be his favorite.[[note]]Uematsu also considers ''IX'' to be ''his'' finest work[[/note]] Given the fans, this is hotly debated, with ''VideoGame/FinalFantasyIV'', ''VideoGame/FinalFantasyVI'', and ''VideoGame/FinalFantasyVII'' being other contenders. Some cases also exist for ''VideoGame/FinalFantasyV'', ''VideoGame/FinalFantasyX'' and ''VideoGame/FinalFantasyXII''. VI and IX have the highest ratings (as seen in the Other Wiki's Final Fantasy article). With Final Fantasy IX having the highest Metacritic score and Final Fantasy VI having the highest GameRankings Score, while VII is considered the biggest game changer in terns of graphics(as it was the first to shift to 3D) combat, as well as presentation(cinematic cutscenes blending with normal gameplay).
* ''KingdomHearts'' (and within that series probably ''[[VideoGame/KingdomHeartsBirthBySleep Birth By Sleep]]'') or ''VideoGame/TheWorldEndsWithYou'' for TetsuyaNomura.
* ''VideoGame/DragonQuestV'' for Yuji Horii. Or, if you're willing to count [[DreamTeam team-ups]], ''VideoGame/ChronoTrigger''.
* Alexey Pajitnov had the original falling-block odyssey, ''VideoGame/{{Tetris}}''.
* ''VideoGame/{{Rayman 2}}: The Great Escape'' and ''VideoGame/RaymanOrigins'' are this for the ''VideoGame/{{Rayman}}'' franchise, the aforementioned games and ''VideoGame/BeyondGoodAndEvil'' are this for Michael Ancel's works, and all of those combined with ''Franchise/AssassinsCreed'' are this for Ubisoft as a whole.
* Richard Garriott had ''Franchise/{{Ultima}}''.
** And from that series, ''VideoGame/UltimaIV'', lauded by game developers today as a standard which has yet to be matched. This is a game from ''1985''.
** ''VideoGame/UltimaVII'' may not match it in influence, but these days it commands even more respect as a whole. Both of the games are considering some of the best PC [=WRPGs=] ever made.
* It might be easy to say ''VideoGame/CastlevaniaSymphonyOfTheNight'' is Koji Igarashi's magnum opus, but that honor is better stated to go to Toru Hagihara, as he served as director and producer. Hagihara was designer and/or producer of almost every ''Franchise/{{Castlevania}}'' game to that point, and so ''Symphony'' is more logically the endpoint of everything he worked towards, while this was only the second game Igarashi worked on. For fans, it's ''VideoGame/CastlevaniaRondoOfBlood'' instead.
* Regarding Igarashi, another candidate is ''TokimekiMemorial 1''. Its success in Japan was ''wild'', and thanks to this, Igarashi was rewarded with the ability to work on the ''Castlevania'' series.
* ''VideoGame/MetalGearSolid'' for HideoKojima. The fandom as a whole is largely divided between which of the series' is the better one, the debate being mainly centered around [[VideoGame/MetalGearSolid Solid]], [[VideoGame/MetalGearSolid2 2]], [[VideoGame/MetalGearSolid3 3]], or [[VideoGame/MetalGearSolid4 4]], for vastly different reasons. Regardless of Kojima's official stand, the controversy over this tends to get out of hand. Worth mentioning is the portion of Kojima's fanbase that defends VideoGame/ZoneOfTheEnders as his MagnumOpus even though he only produced it, he didn't write the story, direct it, or anything, just gave money towards it.
* Thanks to the BrokenBase of the ''[[Franchise/SonicTheHedgehog Sonic]]'' fanbase, fans can't agree on which 2D Sonic game is the best: ''VideoGame/Sonic3AndKnuckles'', ''VideoGame/SonicTheHedgehog2'', or ''VideoGame/SonicTheHedgehogCD''.
** When it comes to the 3D games, it is either between ''VideoGame/SonicAdventure2'', or ''VideoGame/SonicGenerations''.
* Either the ''VideoGame/{{Kirby}}'' franchise or the ''VideoGame/SuperSmashBros.'' games for Masahiro Sakurai, depending on whom you ask. Even picking out individual games for those franchises gets iffy, although ''VideoGame/KirbySuperStar'' and ''VideoGame/SuperSmashBrosMelee'' stand out. ''VideoGame/KidIcarusUprising'' is also among his contenders.
* By the judgment of many fans, sales numbers and WordOfGod, Keiji Inafune's greatest work will always be ''VideoGame/MegaMan2''.
** ''VideoGame/MegaMan3'' would be a very close second then, followed ''maybe'' by ''VideoGame/MegaManX[=1=]'' or ''X4'' (even though Inafune said ''3'' [[MagnumOpusDissonance was his least favorite Mega Man game]]).
** Meanwhile, ''VideoGame/MegaManV'' is this for the Game Boy sub-series and the team from Minakuchi Engineering, the company behind most of its installments.
* Any gamer that has ever played a game on the go will agree that GunpeiYokoi's magnum opus is the original GameBoy. And as far as software goes, his magnum opus is considered to be the ''VideoGame/{{Metroid}}'' series, ''Super Metroid'' in particular.
* Related to the above example, for RetroStudios the ''VideoGame/MetroidPrime'' trilogy was thought as this for many years until ''VideoGame/DonkeyKongCountryReturns'', which is said to contend heavily for that title.
* Either ''VideoGame/{{Portal}}'', ''VideoGame/{{Portal 2}}'', ''VideoGame/TeamFortress2'', or the ''VideoGame/{{Half-Life}}'' series for Creator/ValveSoftware. Another candidate is {{Steam}}, not only their potential Magnum Opus as a company, but for online game distribution as a whole.
* Critics have hailed ''RockBand 3'' as this for studio Harmonix: the culmination of their 15 years of making music games as well as the best music game ''ever''.
* ''VideoGame/CaveStory'' for Studio Pixel (Daisuke Amaya).
* ''[[VideoGame/FatalFury Garou: Mark of the Wolves]]'' for SNK, one of the last games the company released before its unfortunate bankruptcy in 2000. Considering that SNK has amassed a surprisingly large HateDumb by fans of the fighting genre, the fact that SNK fans and non-supporters ''alike'' consider this to be the last great SNK game should be telling within itself.
** ''VideoGame/TheLastBlade'' series as a whole is a close second.
** ''[[VideoGame/MetalSlug Metal Slug 3]]'' is a top contender as well.
* ''VideoGame/MarvelVsCapcom2'' for the ''VideoGame/MarvelVsCapcom'' series if not for all the CapcomVsWhatever games.
* Either ''VideoGame/{{Okami}}'' or ''ViewtifulJoe'' for CloverStudios (before going bankrupt, disbanding from {{Capcom}}, and forming PlatinumGames).
** Out of all the games PlatinumGames has made, ''VideoGame/{{Bayonetta}}'' and ''VideoGame/TheWonderful101'' are usually agreed to be the best.
* ''VideoGame/{{Earthbound}}'' and ''VideoGame/{{MOTHER 3}}'' for ShigesatoItoi.
* id Software has been, especially in the 90's, a standard-setter in video games. Perhaps the best candidate for their MagnumOpus (and lead programmer John Carmack's) is ''VideoGame/{{Doom}}'', their most universally acclaimed game, often considered a milestone. ''VideoGame/{{Quake}}'' is close behind due to its technological innovations.
* ''VideoGame/AnotherWorld'' for Eric Chahi. A timeless classic which made quite an impact at its time and was a pioneer of artistic games.
* ''VideoGame/DeusEx'' for IonStorm, which more than made up for their [[VideoGame/{{Daikatana}} infamous failed FPS]].
* Either the ''BaldursGate'' series or the ''Franchise/MassEffect'' trilogy for BioWare. Specifically for the latter, ''VideoGame/MassEffect2'', by far Bioware's best reviewed and highest grossing game.
** The former can also be one for Black Isle Studios. That, the original ''VideoGame/{{Fallout}}'' duology, or ''PlanescapeTorment''.
* ''Franchise/{{Halo}}'' for {{Creator/Bungie}}. "Halo 2" is generally the best regarded individually.
* ''VideoGame/PlantsVsZombies'' for PopCapGames, being their fastest-selling game and having won many awards.
* The ''VideoGame/{{Uncharted}}'' series for Creator/NaughtyDog. ''VideoGame/TheLastOfUs'' is another potential candidate, with near universal acclaim from critics and gamers alike.
* American [=McGee=] has ''VideoGame/AmericanMcGeesAlice'', cult classic and great game of its time, probably even more like a MagnumOpus than its sequel ''[[VideoGame/AliceMadnessReturns Madness Returns]]''.
* ''Creator/TelltaleGames'' can say without a doubt that ''VideoGame/TheWalkingDead'' is this for them.
* ''Knight Lore'' for Ultimate Play the Game. Set in a three-dimensional world and drawn using IsometricProjection (all of it on a UsefulNotes/ZXSpectrum), it was a revolutionary game at its time.
* For Ultimate's successor, {{Rare}}, ''VideoGame/DonkeyKongCountry'' (in particular ''Diddy's Kong Quest'') or ''VideoGame/{{Banjo-Kazooie}}''
* For ''Creator/IrrationalGames'' it's either ''VideoGame/SystemShock2'' or ''Franchise/BioShock'', for ''[=Bioshock=]'' it's a tie between ''VideoGame/BioShock1'' and ''VideoGame/BioShockInfinite''. However the ''[=Bioshock=]'' series as a whole definitely wins in the [[SceneryPorn visual department]] with ''VideoGame/BioShockInfinite'' being the most impressive to look at.
* Either the Franchise/DotHack franchise or ''AsurasWrath'' probably qualify for this for CyberConnect2.
* As for ''Franchise/{{Pokemon}}'', ''VideoGame/PokemonGoldAndSilver'' was for a very long time the only possible contender for the title of Magnum Opus - especially when ''[[UpdatedRerelease Pokemon HeartGold and SoulSilver]]'' were released. Then along came ''VideoGame/PokemonBlackAndWhite'', and it suddenly became a two-way battle for supremacy. Still, you [[FirstInstallmentWins can't deny]] the impact of ''VideoGame/PokemonRedAndBlue''.
** ''VideoGame/PokemonXAndY'' are receiving a great deal of praise as well lately, being hailed as a fusion of past and present for the franchise.
* ''VideoGame/CallOfDuty 4: ModernWarfare'' for Infinity Ward. It's confusing because Infinity Ward (used to) develop only ''VideoGame/CallOfDuty'', but they rotate with Treyarch in making the individual games. Either way, the first Modern Warfare wins.
** For Treyarch, ''VideoGame/CallOfDutyBlackOps'' is this for them. Because the game finally got them out of Infinity Ward's shadow with its superior campaign mode and the introduction of the surprisingly popular Zombie mode. ''VideoGame/CallOfDutyBlackOps2'' is another strong contender, thanks to its campaign, which some consider the best of the entire series, and the advancements it made for both the multiplayer and Zombies mode.
* ''VideoGame/GunstarHeroes'' for Creator/{{Treasure}}.
* ''VideoGame/ChronoCross'' is this for Masato Kato.
* Averted with ''VideoGame/{{Xenoblade}}''. While Tetsuya Takahasi acknowledged that many fans consider it so, he has said that it was ''not'' his Magnum Opus. The reason? He felt like it set the standard for their games and he'd ''continue to improve upon it''.
* Either ''VideoGame/{{Killer7}}'', ''VideoGame/NoMoreHeroes'', or ''VideoGame/NoMoreHeroes2DesperateStruggle'' for {{Suda 51}}. ''VideoGame/LollipopChainsaw'' is also very loved too, but not as much as the others.
* ''LeagueOfLegends'' can reasonably be considered this for Riot Games, getting great reviews at its launch in spite of lacking several features that were considered standard fare for games of its type at the time (most have been added since), holding several awards and world records in the field of e-sports and being the most played video game in the world.
* Either ''VideoGame/{{Persona 4}}'' or ''VideoGame/{{Persona 3}}'' for the ''Persona'' series, and possibly even for the ShinMegamiTensei franchise as a whole (which one depends on who you ask; ''Persona 4'' is frequently considered the better one in the States, while in Japan 3 is more popular).
* ''[[VideoGame/WorldOfWarcraft World of Warcraft]]'' is clearly this for the [[Creator/BlizzardEntertainment Blizzard]] part of Blizzard-Activision. That, or [[VideoGame/StarcraftII Starcraft II]].
* ''PacMan'' for Namco. ''Tekken'', the ''Soul'' series and ''RidgeRacer'' are close seconds.
* ''UltimateMortalKombat3'' was this for the entire MortalKombat series of games, especially as it was one of the last games produced before it hit the PolygonCeiling. Now, it's ''MortalKombat9'', which shows an astounding level of detail and work put into it, and was the only Kombat game since Ultimate to be deemed tournament worthy by the fighting game community.
* ''VideoGame/NieR'' is generally agreed to be this for the now-defunct cavia.inc and its director Taro Yoko.
* The ''GrandTheftAuto'' series is generally considered this for Rockstar Games. Within the series, the opus to end all opuses is generally considered to be ''GrandTheftAutoSanAndreas'', but with the release of ''GrandTheftAutoV'', it and ''San Andreas'' compete for the magnum opus status. There's a good reason it's the fastest-selling video game of all time. Other Rockstar contenders for this title include ''RedDeadRedemption'' and ''LANoire''.
* ''WWF Smackdown'' for both Yuke's as well as {{THQ}}
* ''Guitar Hero 3'' for Vicarious Visions.

!!Game Soundtracks
* NobuoUematsu considers the soundtrack to ''VideoGame/FinalFantasyIX'' his greatest work. Like the games, the soundtracks are also heavily debated.
** As with the games, you will likely find VideoGame/FinalFantasyIV, VideoGame/FinalFantasyVI, and VideoGame/FinalFantasyVII in that list as decided by fans, though for individual songs there is quite the split among fans for whether "One-Winged Angel" or "Dancing Mad" is the greatest of Uematsu's sons. A case can also be made for "Balance is Restored" as well.
* Similar to ShigeruMiyamoto, Creator/KojiKondo's best work is also debated between the SuperMario and Franchise/TheLegendOfZelda series. And yes, inside each series you have several contenders.
* The soundtrack to ''VideoGame/PokemonBlackAndWhite'' for series composer Junichi Masuda.
* The soundtrack to ''VideoGame/DonkeyKongCountry 2'' for David Wise.
* While YuzoKoshiro [[AwesomeMusic/YuzoKoshiro has had an entire career of awesome music]], his very best is a tie between ''[[StreetsOfRage Streets Of Rage 1 & 2]]'' and ''[[{{Shinobi}} The Revenge of Shinobi]]''.
* For YasunoriMitsuda it's debated between ''VideoGame/ChronoTrigger'', ''VideoGame/ChronoCross'' and ''VideoGame/{{Xenogears}}''.
* Chikayo Fukuda's music work on ''AsurasWrath'' is considered to be her all time best music. And this when her work on many other CyberConnect2 works ({{Solatorobo}}, The Manga/{{Naruto}} ultimate Ninja Games, and Franchise/DotHack amongst others) is already considered to be top notch.
* The ''VideoGame/MontyOnTheRun'' [[http://www.youtube.com/watch?v=93nIljXpqUY theme]] for Rob Hubbard.
* MotoiSakuraba has several contenders scattered throughout the TalesSeries, ''Franchise/StarOcean'', ''BatenKaitos'' and ''VideoGame/GoldenSun'' franchises, as well as ''EternalSonata''.
* The Namco music team has definitely made many beautiful songs, but the best contenders as music Magnum Opus for them would be the ''Soul'' series (operatic, classical battle music) or ''Ridge Racer'' (ElectronicMusic).
* Franchise/SonicTheHedgehog for Jun Senoue.
* ''Turrican 2'' for Chris Huelsbeck.

!!Game Consoles
* For Nintendo, it seems no one can agree on which is their best system: [[SuperNintendoEntertainmentSystem SNES]], [[{{Nintendo 64}} N64]], or [[{{Nintendo Gamecube}} Gamecube]]. And as far as Nintendo handhelds go, it's either [[GameBoyAdvance GBA]], [[NintendoDS DS]], or [[Nintendo3DS 3DS]].
* For Sony, it's the PlayStation2.
* Sega-wise, SegaGenesis/Mega Drive and SegaDreamcast.
[[/folder]]

[[folder:Visual Novels]]
* Fans of Ryukishi 07 can't really decide which one of ''VisualNovel/HigurashiNoNakuKoroNi'' and ''VisualNovel/UminekoNoNakuKoroNi'' is his masterpiece (though a slight majority seams to be leaning towards Umineko). Even Ryukishi 07 himself can't decide on which one he prefers.
[[/folder]]

[[folder:Web Comics]]
* {{Lackadaisy}} for Tracy Butler.
* {{Las Lindas}} for Chalo, Soul Kat, and ID Fox.
* {{Dreamkeepers}} for Dave and Liz Lillie.
* {{Hanna Is Not A Boys Name}} for Tessa Stone.
[[/folder]]

[[folder:Web Original]]
* ''Webcomic/{{Homestuck}}'' by Andrew Hussie fits this category almost perfectly.
* Roger M. Wilcox is probably best known for ''TheIntercontinentalUnionOfDisgustingCharacters'', but he still considers his life's work to be ''Literature/ThePentagonWar''.
* Mateusz Skutnik considers ''CovertFront 3: Night In Zurich'' to be his greatest accomplishment.
* Serris considers ''Roleplay/DarwinsSoldiers'' to be the best online RP he has ever created or played.
* Creator/DougWalker of Website/ThatGuyWithTheGlasses has more than one, depending on the project or series.
** As far as the pre-revival [[WebVideo/TheNostalgiaCritic Nostalgia Critic]] videos go, he considers his review of ''Film/MoulinRouge'' to be his Magnum Opus, as evidenced by it being #1 in his "The Top 10 Nostalgia Critic Reviews" video.
** ''WebVideo/ToBoldlyFlee''. He had a CreatorBreakdown trying to make it perfect, and while he bemoans that it still wasn't enough, he has enough pride to know it came pretty damn close.
* ''[[http://koshiandoh.com/flash-gallery01/natsumi-step/index.html Natsumi STEP!]]'', to this day, remains Koshiandoh's most ([[SurpriseCreepy in]])famous web animation.
* Geoff Ramsey of Creator/RoosterTeeth and Creator/AchievementHunter called the ''Rage Quit'' episode two-parter of ''VideoGame/SurgeonSimulator2013 Steam Version'' this for that series, and it shows.
* Both Lewis and the majority of fans agree that the best story arc on WebVideo/AtopTheFourthWall was "A Piece of the World is Missing", aka "[[EldritchAbomination The Entity]] Story Arc".
* A few countdown artists have made their choices for magnum opuses public:
** The one work of Animalguy001 that is considered to be his best is his "Top 100 Favorite Pokemon". Of that list he said that the #1 entry was the hardest entry to do in his entire career as a countdown artist and he did it well.
** As far as Superflipper76 goes there are 3 works that could qualify: "Why I hate Conker's Bad Fur Day" is by far the BaseBreaker and "Top 10 Traditional RPG's" is a non-controversial fan favorite, but the work he considers to be his best is his "Top 10 Avatar The Last Airbender episodes".
** GamingTopTen's favorite work is his "Top 5 most overrated/underrated games" list.

!![=YouTube=] Poops
* "[[http://www.youtube.com/watch?v=_OVCpD-7nI4 One More Final: I Need You(tube Poop)]]" for WebAnimation/WalrusGuy.
* "[[http://www.youtube.com/watch?v=7PHh9v1dzdQ Gaston's Amazingly Sexy Tri-Organizer Nonsense]]" for [=BillyMorshu=], Dual-Screen, and [=JakeSteel=].
* While "[[http://www.youtube.com/watch?v=gqtQD8kvm_8 TOP 27 ANIME BOOBS]]" ({{NSFW}}) remains [[TrollingCreator [=MeiAID's=]]] most beloved and well-known [[BaitAndSwitch trap video]], there's no denying that his "[[http://www.youtube.com/watch?v=KrJtMASNu8g Ultimate Youtube Poop]]" stunt remains his most ambitious prank yet. Basically, he subbed to thousands of YoutubePoop fans under account name "[=UltimatePooper=]," where he posted a dubious video claiming that he will make a poop that will change poop forever. Most were gullible enough to buy it, and even those who knew what was up were still drawn to it to see just how it would unfold: [[XanatosGambit it was a black hole of a prank]]. After a string of videos taunting the audience about how much time was left, the video finally came... and created an AntiClimax so immense that the HypeBacklash in itself was the climax. It was this that solidified Mei's image as a MagnificentBastard who's able to troll entire communities.
* stong414bad regards "[[http://www.youtube.com/watch?v=74DnrAvR6eg Nick 3D Movie Maker Poop: Let's Get Some Tacos]]" as his greatest work in YouTube Poop:
-->"When I'm long gone I want Let's Get Some Tacos to be my only legacy, because it is perfect."
[[/folder]]

[[folder:Western Animation]]
* ''WesternAnimation/AvatarTheLastAirbender'' for co-creators Michael Dante [=DiMartino=] and Bryan Konietzko. ''WesternAnimation/TheLegendOfKorra'' aims to usurp it, especially after the [[DarkerAndEdgier third season]]. From ''Avatar'', "The Storm" and "The Tales Of Ba Sing Sé" are heavy contenders for the series (particularly thanks to Iroh's segment featuring an incredibly moving InMemoriam tribute to Creator/Mako). As for ''Korra'', the "Beginnings" two-parter is an incredibly popular story told not just in ''Korra'', but in the franchise as a whole.
* Creator/TexAvery: ''WesternAnimation/RedHotRidingHood'' is the most famous one, but ''WesternAnimation/KingSizeCanary'' and ''WesternAnimation/BadLuckBlackie'' are seen as his best work.
* Creator/BobClampett: Usually a tie between ''WesternAnimation/TheGreatPiggyBankRobbery'' and ''WesternAnimation/CoalBlackAndDeSebbenDwarfs''. Of his earlier work ''WesternAnimation/PorkyInWackyland'' stands out.
* * Creator/DisneyChannel: The general consensus regarding Creator/DisneyChannel's modern cartoons is that ''WesternAnimation/PhineasAndFerb'' and ''WesternAnimation/GravityFalls'' are the best of the bunch. ''WesternAnimation/WanderOverYonder'' is also widely considered to be of high quality.
** ''WesternAnimation/GravityFalls'' is also considered to be Alex Hirsch's best, eclipsing his work on ''WesternAnimation/FishHooks'' and ''WesternAnimation/TheMarvelousMisadventuresOfFlapjack'' in popularity and in critical opinion handily.
* Creator/LaurenFaust: Invariably, when asked what her greatest work is, fans and even the woman herself will state that it is ''WesternAnimation/MyLittlePonyFriendshipIsMagic''.
** Episode-wise, the "[[Recap/MyLittlePonyFriendshipIsMagicS4E25TwilightsKingdomPart1 Twilight's]] [[Recap/MyLittlePonyFriendshipIsMagicS4E26TwilightsKingdomPart2 Kingdom]]" two-parter can be considered FiM's opus, though some of [[Recap/MyLittlePonyFriendshipIsMagicS2E1TheReturnOfHarmonyPart1 the]] [[Recap/MyLittlePonyFriendshipIsMagicS2E2TheReturnOfHarmonyPart2 previous]] [[Recap/MyLittlePonyFriendshipIsMagicS2E25ACanterlotWeddingPart1 two]]-[[Recap/MyLittlePonyFriendshipIsMagicS2E26ACanterlotWeddingPart2 parters]] are possible contenders.
** As far as the music goes, most fans will agree that it's "Winter Wrap Up", "Smile, Smile, Smile", or "This Day Aria" for the musicians Daniel Ingram, William Anderson, and Steffan Andrews.
* Creator/MaxAndDaveFleischer: Their WesternAnimation/BettyBoop and WesternAnimation/{{Popeye}} film series of the 1930s. Two Popeye cartoons in particular hold the title for ''classic masterpiece'': ''WesternAnimation/PopeyeTheSailorMeetsAliBabasFortyThieves'' and ''WesternAnimation/PopeyeMeetsSinbadTheSailor''.
* Harman & Ising: ''WesternAnimation/PeaceOnEarth'' is considered to be the best short ever made by Hugh Harman of the Harman And Ising duo. He even said it was one of the very few good cartoons he ever made.
* Creator/FrizFreleng: The best cartoon Freleng ever made is generally considered to be the WesternAnimation/TweetyAndSylvester short ''WesternAnimation/BirdsAnonymous'' which even one an Academy Award for Best Short. It's always included whenever the best Looney Tunes episodes are broacast or compiled. Creator/MelBlanc also felt that it was his finest acting performance.
* Creator/MattGroening: ''WesternAnimation/TheSimpsons'', especially seasons three through ten. ''WesternAnimation/{{Futurama}}'' has also risen in status.
* Creator/HannaBarbera: Their best work according to crtics is ''WesternAnimation/TomAndJerry'', fore being better both visually, dramatically and in terms of entertainment comedy. After they started working for TV their most well beloved work has remained ''WesternAnimation/TheFlintstones''. The show proved that animation could be as popular as live-action sitcoms and was by far their only cartoon series that was both popular with children and adults. All their later work has never met with quite the same critical appreciation. However in the public you'll find more varied answers. On the business side according to now owners it's clearly thought to be Scooby Doo.
* Creator/ButchHartman: Fans suggest either ''WesternAnimation/TheFairlyOddParents'' or ''WesternAnimation/DannyPhantom'' is Hartman's opus. Some would say both. The former had a much larger cultural impact, though. The latter's two-parter, ''The Ultimate Enemy'', is seen as the magnum opus of episodes and what Butch Hartman and his crew are capable of.
* Stephen Hillenberg: ''WesternAnimation/SpongebobSquarepants'', the episode ''Band Geeks'' is considered to be the best Spongebob episode ever. The ending is pretty much a combination of CrowningMomentOfFunny, CrowningMomentOfAwesome, and CrowningMomentOfHeartwarming ''at the same time''.
** "Chocolate With Nuts" is also considered to be the best episode comedy-wise.
* Creator/ChuckJones: Jones has several classics and they are all considered to be among the best in the ''Looney Tunes'' cartoons series, as well as greatest animated shorts ever. ''WesternAnimation/WhatsOperaDoc'' and ''WesternAnimation/OneFroggyEvening'' are usually the two mentioned the most often.
* Creator/MikeJudge: Though WesternAnimation/BeavisAndButthead may be far more iconic and popular fans and critics see WesternAnimation/KingOfTheHill as his magnum opus.
* Creator/JohnKricfalusi: His work on the original WesternAnimation/RenAndStimpy of the early 1990s has remained his most popular and critically appreciated work.
* Creator/WalterLantz: WesternAnimation/WoodyWoodpecker. The best loved ''Woody Woodpecker'' animated cartoon to this day is ''WesternAnimation/TheBarberOfSeville''.
* MainframeEntertainment may be the primary source of Direct-to-Video ''{{Franchise/Barbie}}'' movies today, but the big debate over its Magnum Opus boils down to either ''ReBoot'' or ''WesternAnimation/BeastWars''.
* Creator/WinsorMcCay: ''WesternAnimation/GertieTheDinosaur''.
* Creator/CraigMcCracken: ''WesternAnimation/ThePowerpuffGirls''. Also some might consider ''WesternAnimation/FostersHomeForImaginaryFriends'' as a contender.
* Creator/SethMacFarlane: One ''WesternAnimation/FamilyGuy'' episode, "Brian: Portrait of a Dog", is considered the MagnumOpus by most fans. Also the GrowingTheBeard episode.
* Creator/OttoMessmer: WesternAnimation/FelixTheCat is hands down his MagnumOpus.
* Nickelodeon's best shows from the 90's are usually considered to be ''WesternAnimation/TheRenAndStimpyShow'', ''WesternAnimation/RockosModernLife'', and ''WesternAnimation/{{Rugrats}}''. As for shows from the 2000s, ''WesternAnimation/AvatarTheLastAirbender'', ''WesternAnimation/InvaderZim'', ''WesternAnimation/DannyPhantom'', and the early seasons of ''WesternAnimation/SpongebobSquarepants'' and ''WesternAnimation/TheFairlyOddParents''.
* Creator/NickPark: ''WesternAnimation/WallaceAndGromit''.
* Creator/TreyParkerAndMattStone: ''WesternAnimation/SouthPark''.
* Creator/EverettPeck: ''WesternAnimation/{{Duckman}}''.
* Creator/GenndyTartakovsky: ''WesternAnimation/SamuraiJack'' and ''WesternAnimation/DextersLaboratory''.
* Fans will debate endlessly over which installment of BruceTimm, PaulDini and Alan Burnett's Franchise/{{DCAU}} contributions is their best, with the top contender usually ''WesternAnimation/BatmanTheAnimatedSeries''. ''WesternAnimation/JusticeLeagueUnlimited'' is often cited for Timm (as he was the only one of the three to have full involvement in it) and the late Dwayne [=McDuffie=]. The episode [[Recap/BatmanTheAnimatedSeriesE14HeartOfIce "Heart of Ice"]] is widely considered the best half-hour of television to have come out of the series. Given that it's not only an Emmy winner but the source of a {{Retcon}} for the villain featured (Mr. Freeze), it's not hard to see why. BruceTimm himself decided that his best work is ''GreenLanternTheAnimatedSeries''
-->Timm: [[http://giancarlovolpe.tumblr.com/post/25395242068/joshkeaton-greenlantern-tas-okay-ill-try “I’m not just blowing smoke up your ass, but this is one of the best projects I’ve ever been a part of. Period.”]]
** And then there's also the fact that he personally [[ArtistDisillusionment considers it to be]] [[MagnumOpusDissonance the worst of his works to date]].
* Jhonen Vasquez: 'WesternAnimation/InvaderZim'', an unusual example, since the rest of his work is in comics rather than animation.
* Creator/JayWard: ''WesternAnimation/RockyAndBullwinkle''.
* Creator/GregWeisman: ''WesternAnimation/{{Gargoyles}}''.
* ''Franchise/Transformers'' has ''WesternAnimation/BeastWars'' and ''WesternAnimation/TransformersAnimated'' as the two main competitors for Magnum Opus. ''WesternAnimation/TransformersPrime'' was a contender early into it's run, but after some heavily criticized SeasonalRot in it's second and third seasons, is not up the level of popularity as ''Beast Wars'' and ''Animated''.
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