[[quoteright:250:[[Magazine/{{Wizard}} http://static.tvtropes.org/pmwiki/pub/images/cit_ultimate_battle_superman_goku.JPG]]]]
[[caption-width-right:250: [[Anime/DragonBallZ Goku]] fighting Franchise/{{Superman}}!? ''[[CatchPhrase Let's get ready to rumblllllle!]]'']]

->'''[[WebAnimation/{{RWBY}} Yang]]:''' Havin' fun? I sure am!\\
'''[[VideoGame/FinalFantasyVII Tifa]]:''' Don't mock me!
-->-- ''WebAnimation/DeathBattle''

Ah, the IntercontinuityCrossover fight. Everyone wonders once in awhile "If X and Y met, who would win in a fight?" And whether you [[FanWank come up with incredibly thorough theories of your own]], [[FandomRivalry argue it with others]], write a {{fanfic}}, or just [[MyDadCanBeatUpYourDad resort to name-calling]], everyone has their own opinion.

Such bouts between characters from different works will often involve [[TrappedInAnotherWorld one or more of the fighters being pulled into a different continuity]], [[LetsYouAndHimFight the strangers fighting for no logical reason]] and [[PowerCreepPowerSeep handicaps or caveats being introduced to make the fights more interesting]]. Also usually ends with [[PopularityPower the most popular of the combatants winning]] frequently due to the opponent conveniently not using his [[ForgotAboutHisPowers powers]] or [[ForgottenPhlebotinum resources]] to the fullest. Far more often, however, [[EvasiveFightThreadEpisode no one winning at all]] in order avoid ticking off the loser's fanbase; this is typically accomplished by a common enemy appearing and thus allowing both characters to save face.

Characters commonly subjected to this include those [[CaptainErsatz identical]] or at least the [[{{Archetype}} same kind]] of character when compared to someone else and prominent characters in franchise or works with heavy amounts of FandomRivalry between them.

Overlaps with MassiveMultiplayerCrossover when more than 2 works are involved. If the characters end up in a relationship instead of fighting, it's a CrossoverShip. Characters discussing other characters in one of these battles is a HypotheticalFightDebate. Compare to CharacterTiers and GuestFighter. See also CoolVsAwesome. Contrast with StoryBreakerTeamUp.

If you were looking for the song, [[Music/TheUltimateShowdownOfUltimateDestiny go here]].

'''ATTENTION:''' The examples list is for matchups actually portrayed in media (including two characters having a "who would win" argument.) Matchups that you or the fandom would ''like'' to see? [[http://tvtropes.org/pmwiki/conversations.php?topic=00000000000000000000001y There's a forum for that!]]



[[folder:Anime & Manga ]]
* ''Anime/MaiOtome'': Put the Otome against the [=HiME=], or, more specifically, their resurrected ''Anime/MaiHime'' counterparts.
* ''Anime/GundamBuildFighters'' features several models from different series, many of which are modified, fighting it out. So you have situations like the Build [[Anime/MobileSuitGundamSeed Strike]] vs. the [[Anime/AfterWarGundamX GX]] Maoh. Heck, the initial episode where these two "fight" has the builders dressed up as Kira and Garrod respectively.
** The ''Build Fighters Battlogue'' series has an even more blatant example in its first episode. The Gunpla Battle system has been upgraded with an AI component to act as support for newbies and can imitate famous characters from the ''Gundam'' franchise. Tatsuya Yuki and Alan Adams, both humongous ''Gundam'' {{Otaku}}, decide to test the system out by having AI copies of [[Anime/MobileSuitGundam Char Aznable]] and [[Anime/MobileSuitGundam00 Ribbons Almack]] fight each other. At the end of the short, they're excitedly talking about having [[Anime/MobileSuitZetaGundam Emma Sheen]] face off against [[Anime/MobileSuitGundamF91 Seabook Arno]].
* ''Anime/YuGiOhArcV'': The entire premise of the series includes dimension-hopping between worlds that are all AlternateUniverse counterparts of [[Anime/YuGiOhGX past]] [[Anime/YuGiOh5Ds Yugioh]] [[Anime/YuGiOhZexal series]], and features several epic battles between opponents whose decks are based on the special summoning methods featured in each past series, along with several FreezeFrameBonus shots of [[TheCameo minor characters from past series making minor appearances]], [[spoiler: along with two major characters from ''5D's'', one from ''Zexal'', and two from ''GX'' returning in full]]. [[FantasticRacism This]] [[WarIsHell gets]] [[GenreDeconstruction much]] [[JigsawPuzzlePlot more]] [[MoralityKitchenSink complex]] [[RealityEnsues than]] [[{{Reconstruction}} most]] [[GenreSavvy viewers]] [[MythologyGag were]] [[MoodWhiplash expecting.]]

* [[http://www.artleo.com/images/201108/artleo.com_7634.jpg This image]], called ''War of the Worlds'' (Война миров), painted by the Russian contemporary artist Nikolai Kopeikin depicts an epic but gruesome battle between cartoon characters of mostly Western Animation and [[EasternAnimation Russian Animation]]. Not only this picture is an example of the trope but it also stresses the [[FandomRivalry rivalry]] between domestic and foreign animation in Russia.

[[folder:Card Games]]
* ''Anachronism'': A card game that lets you pit various historical (or somewhat historical, like Myth/RobinHood) characters against each other. For more fun, trade the character's goodies around -- give Achilles Beowulf's chain mail and Miyamoto's katana.
* ''Superfight!'' is another card game in this vein, where each player plays a character card and two power/problem cards (one on their own character, another on an opponent's character), then debates over which creation would beat the character of that round's judge in a fight, resulting in match-ups like Mr. T with an assault rifle and riding a unicorn vs. 3 Stephen Hawkings with [[Franchise/StarWars the Force]].

[[folder:Comic Books]]
* ''[[ComicBook/BatmanVampire Batman and Dracula: Red Rain]]'' finally put to rest an age-old debate: The Dark Knight or the Prince of Darkness? Dracula and Batman fight over Gotham City to find out who the true master of fear and deception is. [[spoiler: They both lose. Dracula is killed and Batman becomes an irredeemable vampire.]]
* Dracula vs. Superman: By hypnotizing Lois, Dracula actually gained the upper hand and succeeded in drinking Superman's blood. However, Superman is solar powered, and seconds after drinking his blood, well... [[YourHeadASplode imagine eating a grenade]].
* [[http://www.dialbforblog.com/archives/315/ Superman vs. Muhammad Ali]]
* ''Comicbook/FreddyVsJasonVsAsh'' is a comic run about a three-way batle between them.
* Comicbook/TheDarkKnightReturns has Superman vs. Batman. [[spoiler:Batman wins... sorta. It's complicated; what are you doing here? ''Go read it''.]]
* Then there's one in ''ComicBook/SupermanBatman'' issue 78, which handled the subject masterfully. The fight happens, but suddenly you see a narration, or rather, two narrations arguing against each other. Eventually, it is shown that two kids, one a fan of Superman and the other a fan of Batman, are arguing who wins. After much {{Ass Pull}}s done with each argument, [[spoiler:the two kids agree that the two are friends and would not fight each other]]. Towards the end, we see Superman and Batman observing the kids. Superman wonders who would win and asks Batman what he thinks, but Batman just flies away. [[spoiler:Batman believes Superman will win]].
* ''ComicBook/JLAAvengers'', has ([[ExactlyWhatItSaysOnTheTin as you've no doubt already guessed]]) the Franchise/JusticeLeagueOfAmerica vs. Comicbook/TheAvengers.
* Wizard Comics ran one issue of Goku versus Superman. [[spoiler:And unlike in that Death Battle, Goku won, in his base form, no less.]]
* ''ComicBook/TheUnbeatableSquirrelGirl'':
** The first issue has a faked fanmail column consisting almost entirely of "Who would win in a fight, Squirrel Girl or [insert character here]?"
** Galactus is heading toward Earth, cloaked in a stealth field ("...but he forgot to make it work on squirrels!",) so fans will finally see that match-up.

[[folder:Fan Works]]
* This is the entire premise of ''Fanfic/MyLittlePonyVs''.
* ''Fanfic/FantasyOfUtterRidiculousness'' asks the question: "Who would win in a fight between [[WesternAnimation/MegasXLR Megas]] and [[VideoGame/{{Touhou}} Suika Ibuki]]?" [[spoiler: The answer: Marisa Kirisame.]] The Extra Stage asks the same question with Yuuka Kazami taking Suika's place.
* ''Webcomic/RichsComixBlog'' has a story that pits [[Series/ForeverKnight LaCroix]] against [[Series/DoctorWho the Master]]. Another story pits the [[Series/DoctorWho Daleks]] against some [[Film/{{Alien}} Xenomorphs]].
* ''Fanfic/WeissReacts'' has the [[Anime/TengenToppaGurrenLagann Gurren Lagann]] against the [[Anime/EurekaSeven Nirvash]]. [[spoiler: The Gurren Lagann wins, barely, through Blake being a {{Determinator}} of the highest order.]]
** Later, Weiss against Glynda. [[spoiler: Weiss wins by using an antic, ironically.]]
** Even later still, the Gurren Lagann, the Nirvash and [[Anime/CodeGeass the Shinkiro]] against [[Anime/RinneNoLagrange the Voxes]]. [[spoiler: Nobody wins: the Jersey Club and the Beacon gang team together to beat Tukson up for daring to intervene.]]
** [[Manga/KOn Hokuago Tea-Time]] vs Team RWBY. [[spoiler: The former win by being better musicians and being adorable. Blake is not happy.]] And the convention chapter has Adam and Raven, [[spoiler: which nobody wins, although both are forced to retreat due to outside circumstances.]]
* ''Fanfic/CoreLine'' name-drops this Trope on its OpeningNarration and delivers big-time: a post-apocalyptic world where superheroes that are [[FusionFic fusions with other franchises]] and canonical supers beat the hell out of each other, ''Anime/{{Naruto}}''-verse Ninja and ''Anime/OnePiece'' Pirates [[PiratesVersusNinjas try to kill each other in earnest on the high seas]] (with the occasional additional gunfire from ''Franchise/PiratesOfTheCaribbean'' pirates and other types of ninja), Franchise/{{Gundam}}s face off against TabletopGame/{{Battle|tech}}mechs, [[VideoGame/TeamFortress2 MannCo.]] fights [[Fanfic/NoGodsOnlyGuns Torgue-Urdnot]] in a CorporateWarfare race to out-badass each other... [[WorldOfBadass and the more-than-occasional]] BadassBystander that is sick of all the shit will try to bring the fight to a stop via gunfire (and maybe they will be packing something like a Franchise/MassEffect weapon or a [[Videogame/{{Borderlands}} Torgue gyro-jet rifle]] or a {{BFG}} designed by [[ComicBook/GoldDigger Brianna Diggers]] or being juiced out of their minds on [[TabletopGame/Warhammer40000 Slaught]]... ''or all of the above'').
* The SeriesFinale of ''FanFic/TheConversionBureauWorldsWhereItWouldntWork'', pits {{Fanon}} character Tyrantlestia, against Cannon Celestia in ''Screw Attack's Death Battle'' style fight. [[spoiler:A decently written character, beats a GodModeSue.]]
* ''[[http://www.electricferret.com/fights/ The Comic Book Universe Battles]]'', which started in 1997 as a sub-section of a ''Series/XenaWarriorPrincess'' fan's Callisto fansite and eventually grew into something all its own. Seen as a friendly rival by the above Grudge match it later stopped proposing scenarios [[http://www.electricferret.com/cbub/ and let users submit, debate and vote on them]]. Currently user voting is down indefinitely but some of the scores are still in the database. In the late 2000's (around 2008 or 2009) the site was revamped to include 2 vs. 2 and 3-way battles as well as reintroducing the ability to submit characters to the database, however unfortunately at the end of 2013, the site's creator and owner stated that the CBUB (and its sister site the Fantasy Powers League) would be shutting down permanently.
* ''Numerous'' websites dedicated solely to what faction from ''Franchise/StarWars'' and ''Franchise/StarTrek'' would lay the ultimate smackdown upon all the others. Website/StarDestroyerDotNet is a particularly (in)famous one, and Website/SpaceBattlesDotCom caters to all kinds of sci-fi matchups but is invariably dominated by ''Trek'' vs. ''Wars'' as well as the occasional just-for-fun curbstomp (the Orcs from ''Literature/TheLordOfTheRings'' vs. modern machine guns, [[UsefulNotes/PeaceThroughSuperiorFirepower carpet bombing from B-52s]], ''an orbiting Imperial Star Destroyer'', and finally, the real kicker, [[TabletopGame/Warhammer40000 doze udda Orkz]]). Both of these websites more or less grew out of the Usenet newsgroup alt.startrek.vs.starwars.
* "Dream Tournament", a popular series of vote-driven fanfics on the Usenet group rec.games.video.arcade from the mid-'90s, pitted FightingGame characters from different games against each other. The Tournament gave rise to several spinoffs, as well as many {{Fanon}} personality traits for the characters.
* There was an old fanfiction Dream Tournament called the ''FanFic/UltimateVideoRumble'', where some truly memorable fights happened both within and without the arena. Highlights include Haohmaru and Genjuro of ''VideoGame/SamuraiShodown'' fame clashing swords furiously, while everyone who attempts to break their battle gets tossed aside, and dysfunctional organizers and security staff who make Eddy Gordo of ''VideoGame/{{Tekken}}'' fame suffer after he got eliminated from the ring. The UVR was a deliberate spiritual successor to the first three Dream Tournaments, continuing many of the fanon events and characterizations from the DT.
* Stefan "Twoflower" Gagne organized a RoundRobin tournament featuring characters from all over anime (and sometimes, beyond) called [[http://www.mtcffultra.com/ Magical Troubleshooting Crossover Fighting Federation ULTRA.]] The various writers used and abused pretty much the entire ProfessionalWrestling trope list, with backstage plots ranging from mere personal power grabs and MindControl to [[Anime/NeonGenesisEvangelion Third Impact]] and wresting Godhood from [[Manga/RanmaOneHalf Kasumi Tendō]] Herself. The golden rule staving off the inevitable FanBoy [[FlameWar flame wars]] was understood to read, "Anyone, under the right circumstances, can defeat anyone else in a fight." The only systemic exceptions to this idea were made to account for anime-style "weight restrictions." It's worth noting that the story of ''how'' Kasumi became God and several other plot points such as Dark Sakura originated from MTCFF '''Beta''' which was a single-elimination tournament decided by votes rather than by individual authors, with such oddities as [[FusionDance Fusion character]] "Nario" resulting from Naru of ''VideoGame/BattleArenaToshinden'' and Mario of ''Franchise/SuperMarioBrothers'' tying in votes.
* "Hitler continued laughing, then finally said 'Goku! You came here expecting to find a madman, but instead, you found a GOD!' Hitler had become a Super Saiyan." How's that for a CrackFic-style showdown? See it [[http://smallcave.net/goferchan/afgoku01.html right]] [[http://smallcave.net/goferchan/afgoku02.html here]] in all its Not Safe For Sanity glory. By the way, it also [[{{shipping}} ships]] Goku x Anne Frank.
* Ultimate Showdown tournaments are a [[http://board8.wikia.com/wiki/Most_Powerful_Character_Contest common occurrence]] on Website/GameFAQs' "Board 8", allowing users to debate to the most extremely geekish limits possible about who'd win. The arguing can lead to some, hmmmm, very curious victories (Apparently, Film/TheMask can just barely beat [[Anime/DragonBallZ Broly]] with cartoon physics, the most powerful ''VideoGame/{{Darkstalkers}}'' can win left and right merely based on their '''vague backstories''' alone, Voldemort can upset [[Franchise/LyricalNanoha Nanoha's]] constant nuking of areas and people and [[Series/DoctorWho the Doctor]] can defeat ComicBook/TheFlash with, uhhh, timey wimey stuff. Or prep time. Or whatever).
* [[http://www.rpgdl.com/ The RPG Duelling League]] is a site dedicating to deciding which VideoGame RPG characters would win in a fight. The site is organized into 6 week long elimination tournaments (refered to as seasons) with four different CharacterTiers (Light, Middle, Heavy, and Godlike). The voters who decide who wins are also ''strongly'' encouraged '''NOT''' to vote according to [[PopularityPower popularity]] or [[GameplayAndStorySegregation plot powers]], but rather comparative in-battle capabilities and performance.
* Sites like Comic Book Resources and Hero Chat have their own (Comic Book Rumbles and It's Clobberin' Time!, respectively), among many, many other websites. They often [[FlameWar don't like each other.]] Most infamous incident was a flame war and board raid between Rumbles and Star Destroyer, after Rumbles determined Borg Cubes can destroy the Death Star. Cue FanWank and board raid.
* [[http://www.factpile.com/ Factpile]] mostly runs on this trope. It has branched out to include other topics, but is still mostly battles between fictional characters. It has also determined the outcome of the page image [[spoiler: Superman easily wins.]]
* ''Fanfic/MakeYourMove'' applies this to ''VideoGame/SuperSmashBros'' with movesets for everything from King K. Rool to Socrates.
* Wiki/DeadliestFictionWiki: using the formula from Deadliest Warrior, but for warriors of any media and franchise, with the warriors chosen by logical debates from the members of the site. It's essentially TheWikiRule for UltimateShowdownOfUltimateDestiny.
* Tor.com: Tor Books' website holds yearly "cage matches" pitting various fantasy characters against each other in a single-elimination tournament, with the characters' creators invited to write how ''they'' think each of their characters' battles would go.
* [[http://www.youtube.com/watch?v=yMgnNI0Puxo "Valve World"]], showing ''VideoGame/TeamFortress2'' Then ''VideoGame/CounterStrike'', ''VideoGame/Dota2'', ''VideoGame/Left4Dead 1 and [[VideoGame/Left4Dead2 2]]'', ''VideoGame/HalfLife2'', ''Deathmatch Classic'', ''Day Of Defeat'', ''VideoGame/AlienSwarm'', ''VideoGame/{{Portal}}'' and then ending on ''VideoGame/HalfLife1''.
* ''Website/TheOutskirtsBattledome'' exists for people to speculate who would win in a fight between two fictional characters or real-world people.
* ''The Alterverse War'': Kristofer Straub, the author of ''Webcomic/StarslipCrisis'', put togheter ''[[Webcomic/StarslipCrisis Fuseli]]'' vs. the ''[[Webcomic/SchlockMercenary Touch and Go]]'' [[spoiler:the ''Fuseli'' won, but only due to some clever maneuvering]].
* A now-gone discussion on the ''VideoGame/WorldOfWarcraft'' forums about which of the capital cities in the game would be most defensible against attack. One side said the Undercity (the underground sewers and basements of the destroyed city Lordaeron, the [[OurZombiesAreDifferent Forsaken]] capital) would be the hardest to assault, and someone said they'd just put poison gas into the surface vents.
-->"What kind of gas would work against the undead?"\\
"...well played, sir."
* ''FanFic/ThisBites'': Even in ''Manga/OnePiece'', this is SeriousBusiness. Cross's lie that he and Mr. 13 were fighting over who is the strongest of the Four Emperors (and Mr. 13 said Kaido) leads to a street brawl among the onlookers that ends up setting half of Mock Town on fire.
* ''FanFic/TheBridge'': [[{{Franchise/Godzilla}} Bagan]], resident BigBad and a kaiju easily titled a [[EldritchAbomination deity]]; versus [[WesternAnimation/MyLittlePonyFriendshipIsMagic Harmony]], living incarnation of the [[MacGuffinSuperPerson Tree of Harmony]] and source of Equestrian magic. [[spoiler:Marginal victory to Bagan, Harmony couldn't stop Bagan and Bagan couldn't kill Harmony. Though Bagan did succeed in cutting her off from helping the heroes due to their battle's collateral damage, a secondary goal.]]

[[folder:Films -- Live-Action]]
* Franchise/MarvelCinematicUniverse:
** ''Film/{{The Avengers|2012}}'': Thor vs. Iron Man, with Captain America joining in at the end, and we get to see {{Mjolnir}} vs. Captain America's shield. Thor vs. The Hulk.
** ''Film/CaptainAmericaCivilWar'' is a massive extravaganza of this, starting off with Winter Soldier vs. Black Panther vs. Captain America, leading into [[spoiler:a [[BrainwashedAndCrazy re-brainwashed]] Winter Soldier curbstomping half the cast]], leading into the titular all-character melee featuring pretty much every possible combat matchup between any two characters on opposite sides and culminating in [[spoiler:[[LetsGetDangerous Ant-Man]] vs. all of Team Iron Man]], leading into [[spoiler:Cap and Winter Soldier vs. Iron Man after Tony sees [[RelativeButton that one video]]]].
* ''Film/MegaSharkVsGiantOctopus'': ExactlyWhatItSaysOnTheTin, and [[http://www.youtube.com/watch?v=2LpjxWF7C6E Vs. R. Lee Ermey]], [[spoiler: with a cameo from Creator/BillyMays.]]
* ''Film/TheForbiddenKingdom'': Creator/JetLi vs. Creator/JackieChan. It was a draw, though Jet Li has gone on record as saying that in a no holds barred fight, Jackie would wipe the floor with him.
* ''Film/FreddyVsJason''. Two popular eighties SlasherMovie icons duke it out for the right to slaughter teens.
* ''Film/FrankensteinMeetsTheWolfMan'', the very first Famous Monster vs Famous Monster movie. Universal then did two more (''Film/HouseOfFrankenstein'' and ''Film/HouseOfDracula''), adding Dracula to make it a Triple Threat.
* ''[[Film/TheFastandtheFurious Fast Five]]'': Creator/VinDiesel vs. Wrestling/DwayneJohnson. Yes, it's as awesome as it sounds.
** ''[[Film/TheFastandtheFurious Furious 7]]'' seeks to up the ante by adding Creator/JasonStatham and Tony Jaa to the mix as villains.
* ''Film/WhoFramedRogerRabbit'' features a piano duel between WesternAnimation/DonaldDuck and WesternAnimation/DaffyDuck, which quickly escalates into an ''actual'' duel.
* ''Film/KingKongVsGodzilla'', in which two giant monsters created in different countries beat the tar out of each other. [[spoiler:The victor is ambiguous in the film, but Toho went on record giving the win to King Kong.]]
* ''Film/TheBlackCat:'' Creator/BelaLugosi vs. Creator/BorisKarloff. And it is awesome.
* ''Film/BatmanVSupermanDawnOfJustice'' Where Superman and Batman throw down on the big screen.
* ''[[Film/TheRing Sadako]] [[Film/SadakoVsKayako vs.]] [[Film/{{Juon}} Kayako]]'': Cinematography's two most famous [[StringyHairedGhostGirl onryō]] throw it down in ''Film/TheGrudge'' match of 2016.
* ''Film/WayOfTheDragon'' features Creator/BruceLee vs. Creator/ChuckNorris. [[spoiler:Lee wins by [[NeckSnap snapping Norris's neck.]]]]
* ''Film/RockyBalboa'' centers around an in-universe example, as a simulation between Rocky and current heavyweight champion Mason Dixon prompts enough media buzz to lead to a real exhibition bout between them.

* "Shark vs. Train": Parodied in the children's book which takes the more common sense approach, with hilarious results (it matters, for instance, whether the competition is under water, or involves trying to sell lemonade).
* 1906: ''[[Literature/ArseneLupin Arsène Lupin]] vs. SherlockHolmes'', by Lupin's author Maurice Leblanc, as an AffectionateParody. Soon afterwards, Arthur Conan Doyle complained and, from the following edition onwards, the story became ''Arsène Lupin vs. [[WritingAroundTrademarks Herlock Sholmes]]'' (or, in some versions, "Holmlock Shears").
* ''Literature/{{Animorphs}}'': Huge fanboys Jake and Marco from like to argue about whether Batman could beat Spider-Man.
* OlderThanDirt: Literature/TheIliad is this to a significant portion of [[Myth/ClassicalMythology Greek mythology]], including the gods themselves. It also makes clear that Zeus would win with one arm behind the back if he decided to join the frame (so he claims, and the gods, ''speaking from experience'', don't dare to contradict him)... [[BigNeutral And that's why he stays out of it]].
* David Weber's ''Literature/OutOfTheDark'' and [[spoiler:vampires versus aliens]]. And that's just the first part of the trilogy!
* The climax of ''Literature/ReadyPlayerOne'' becomes this due to the major players all piloting simulations of HumongousMecha from [[TheEighties 1980s pop culture]], culminating in a showdown between the protagonist's Series/{{Ultraman}} and the [[BigBad Big Bad's]] [[Film/GodzillaVsMechagodzilla Mechagodzilla]].
* "Bear v. Shark" by Chris Bachelder could be termed the discussed version of this trope.

[[folder:Live-Action TV]]
* ''Series/{{Arrowverse}}''
** In ''Series/TheFlash2014'', the first ever crossover with ''Series/{{Arrow}}'' in 2014 is titled "[[ExactlyWhatItSaysOnTheTin The Flash vs. Arrow]]", where [[ComicBook/GreenArrow Oliver Queen]] has to take on a BrainwashedAndCrazy [[Comicbook/TheFlash Barry Allen]].
** In ''Series/LegendsOfTomorrow'', the episode "The Justice Society of America", has the Legends take on [[ComicBook/JusticeSocietyOfAmerica said titular team]], and [[CurbStompBattle losing spectacularly]].
** Once again in ''The Flash'', the 2016 "Invasion!" crossover had Team Arrow (Spartan, Speedy), the Legends (White Canary, [[ComicBook/TheAtom Atom]], [[ComicBook/{{Firestorm}} Firestorm]], and Heat Wave), and [[Series/Supergirl2015 Supergirl]] get [[MindManipulation mind controlled]] by the Dominators, forcing Green Arrow and the Flash to fight their friends. Oliver takes on the {{Badass Normal}}s while Barry fights the ones with superpowers. Oliver manages to fight off most of the heroes before Wally West/Kid Flash [[BigDamnHeroes comes in and assists]]. Barry takes out most of the heroes with lightning throws before he's left in one fight against Supergirl.
** Series/{{Arrow}}'s season 5 finale has this with heroes and villains pulled from throughout Arrow's history in one giant showdown. The contenders include Oliver Queen, Malcolm Merlyn, Nyssa Al-Ghul, and [[ComicBook/{{Deathstroke}} Slade Wilson]], facing off against Adrian Chase, Talia Al-Ghul, Evelyn Sharp, and Captain Boomerang. The stakes being Oliver's [[ArcWords legacy]] and the fate of his family. As a bonus, Dinah Drake and Black Siren pit their Canary Cries against each other.
* ''Franchise/MarvelCinematicUniverse'''s Netflix shows.
** ''Series/JessicaJones2015'' has ComicBook/JessicaJones fighting a BrainwashedAndCrazy [[ComicBook/LukeCageHeroForHire Luke Cage]] after he falls under Kilgrave's MindManipulation.
** ''Series/TheDefenders2017'' pits Luke Cage against [[ComicBook/ImmortalIronFist Danny Rand]], including a SignatureScene of Danny using the Iron Fist to deliver a right hook to Luke's face.
* In ''Series/HowIMetYourMother'', Barney, Marshall and Lily go to the event "Wrestlers Vs. Robots" where Mexican-style wrestlers battle a variety of robots.
* ''Series/DeadliestWarrior'': A Spike TV show which explores "history's greatest killing machines", looks at their historic backgrounds and the science behind their equipment and fighting styles, and pairs them off in a one-on-one computer simulated fight. Showdowns include "Gladiator vs. Apache", "Ninja vs. Spartan", "Taliban vs. IRA", "Yakuza vs. Mafia", and "William Wallace vs. Shaka Zulu".
* ''Jurassic Fight Club'': A History Channel show, similar to ''Deadliest Warrior'' in that it uses best available knowledge to establish the abilities, strengths, and weaknesses of the animals, then [=CGIs=] the actual fights. Match-ups include Allosaurus vs. Ceratosaurus; Mega-Lion vs. the Short-Faced Bear; and Megalodon vs. Brygmophyseter, the "biting sperm whale".
* Animal Planet had a short lived series called ''Animal Face Off'', which was basically ''Jurassic Fight Club'' done with living species that plausibly might confront one another in the wild.
* ''Series/HarryHillsTVBurp'': "Well, I ''like'' X, but then I ''also'' like Y. But which is better?" ''[Costumed/made-up/bewigged representations/impersonators of X and Y crash into studio from opposite directions and make a beeline for each other]'' "FIIIIIIIIIIIGHT!!"
* ''Series/DoctorWho'':
** The original series episode "The Mind Robber" eventually, through convoluted means, features a sword fight that involves Cyrano de Bergerac, D'Artagnan, Blackbeard, and Sir Lancelot.
** And "Doomsday" brings the fight people had been wanting for ''decades'': Daleks vs. Cybermen.
** The novel "All-Consuming Fire" had Sherlock Holmes and the seventh Doctor square off with the Cthulhu Mythos.
* ''Series/SaturdayNightLive'': Spoofed in a recurring sketch in which George Wendt leads a cadre of football fans who speculate on the scores of hypothetical games pitting the Chicago Bears against other teams, with the Bears facing increasingly unlikely handicaps, such as being shrunk to the size of midgets. (Hint: Da Bears win.)
-->'''Wendt:''' Who would win, the Death Star or the Enterprise?\\
'''Others:''' Ditka!
* ''Series/{{Star Trek|The Original Series}}'' has an episode in which aliens set up an Ultimate Showdown: Kirk, Spock, Abraham Lincoln, and Surak versus Colonel Green, Kahless, Zora, and UsefulNotes/GenghisKhan.
* ''Franchise/SuperSentai'' do this about once a year [[BigDamnMovie as a movie]], usually by having the current Super Sentai meet up with the previous year's SuperSentai in a LetsYouAndHimFight scene before teaming up to take on the BigBad of the film.
** ''Series/SamuraiSentaiShinkenger'' met up with ''Series/TensouSentaiGoseiger'' for a movie in 2011.
** ''Series/KaizokuSentaiGokaiger'' then met up with ''Series/TensouSentaiGoseiger'' before taking on ''Series/SpaceSheriffGavan'' and going on to fight ''Series/KamenRiderDecade'', the last done '''two months after their own series ended.'''
** ''Film/KamenRiderXSuperSentaiSuperHeroTaisen'' pits the Kamen Riders (led by Decade) against the Sentai warriors (led by [=GokaiRed=]). ''Series/KamenRiderFourze'' and the ''Series/TokumeiSentaiGoBusters'' eventually pop up and [[EvasiveFightThreadEpisode ask why they're even fighting in the first place]].
* ''Series/KamenRiderDecade'': For the ''Franchise/KamenRider'' series. Decade can take on the form and powers of the last nine hero Riders, allowing match-ups like Kuuga vs. Kiva, Kiva vs. Knight and so on.
* ''Series/{{Angel}}'': In one episode, Angel and Spike argue vehemently over who would win if astronauts and cavemen got into a fight. Even better, they somehow manage to get all of the other main characters at the time to argue over this. Through the entire episode.
-->'''Wesley:''' Ah. You've been yelling at each other for 40 minutes about this? ...do the astronauts have weapons?\\
'''Angel & Spike:''' ''[in unision]'' [[SeriousBusiness NO!]]
* One episode of ''Series/GameOfThrones'' opens with [[PunchClockVillain two Lannister soldiers]] discussing who's the best fighter in Westeros. They've narrowed it down to Ser Jaime [[RedBaron "Kingslayer"]] Lannister, Ser Gregor [[NamesToRunAwayFromReallyFast "The Mountain"]] Clegane, and Ser Loras [[AgentPeacock "The Knight of Flowers"]] Tyrell. Their discussion is cut short by [[spoiler:the Stark army]].
-->'''Soldier #1:''' What about Loras Tyrell?\\
'''Soldier #2:''' He's been [[UnusualEuphemism stabbing]] Renly Baratheon for years, and Renly ain't dead!
* ''Series/BuffyTheVampireSlayer'' has an episode called "Buffy vs. {{Dracula}}". The titular fight ends inconclusively, with Buffy killing the Count, but with him clearly able to come BackFromTheDead at will.[[note]]Though Drac was wise enough not to reform near Buffy, who shooed him away threateningly.[[/note]] The show also had to break many of its [[MagicAIsMagicA own rules]] about [[OurVampiresAreDifferent how its vampires work]] [[labelnote:*]] though season 8 reveals his powers are a result of his skill in magic.[[/labelnote]] in order to pit Buffy against a recognizable version of Dracula; the whole episode relied heavily on RuleOfCool.
* Discussed in ''Series/TheBigBangTheory'' when the guys [[CavemenVsAstronautsDebate argue over]] which fictional characters, mostly superheroes, would best who in a fight.
* ''Series/{{Jeopardy}}'': After Ken Jennings' 75 wins in 2004, the producers held the "Ultimate Tournament of Champions", which ran from February to May 2005, inviting 145 previous tournament winners and 5-time champions who competed against one another. The tournament was littered with upsets and dark horse victories in the early rounds. Of the "Nifty Nine" champions that were byed to the second round following their record setting and accomplished prior runs on the show, ''seven'' of them lost their opening game, with only Brad Rutter and Frank Spangenberg advancing to the quarterfinals. Of the thirteen previous Tournament of Champions winners who started in Round 1, only ''four'' made it to Round 2 (Ryan Holznagel, Michael Dupee, Dan Melia, Mark Dawson), with only Melia making it to Round 3.

* [[TropeNamer The trope is named for]] the song and flash animation "[[Music/TheUltimateShowdownOfUltimateDestiny The Ultimate Showdown of Ultimate Destiny]]" by Music/LemonDemon, in which many famous fictional characters, pop culture icons and historical persons come together for the sole purpose of knocking the living crap out of each other. (The last one standing is [[spoiler:[[Series/MisterRogersNeighborhood Mister Rogers]] in a bloodstained sweater]].)
* Defied in Ookla the Mok's "Stop Talking About Comic Books or I'll Kill You":
-->'' I don't care if the [[ComicBook/IncredibleHulk Hulk]] could defeat [[Franchise/{{Superman}} the Man of Steel]]\\
I'm gonna rearrange your face if you continue to debate\\
Whether [[ComicBook/{{Wolverine}} Logan's]] claws could pierce [[ComicBook/CaptainAmerica Steve Rogers]]' shield''

[[folder:Pro Wrestling]]
* The promotional war and invasion angles can end up like this trope, in theory. In practice, they tend to be disappointments. One owner often refuses to acknowledge another organization as worth comparing to their own, and as such they usually end up being {{fake crossover}}s. The most famous flop among fans in the USA was Wrestling/{{WCW}} invades the Wrestling/{{W|orldWrestlingFederation}}WF, an invasion angle InNameOnly. Vince's kids just aligned a bunch of WWF wrestlers, some of whom happened to have gained some prior fame elsewhere. ''Some of whom.'' The prior Wrestling/{{N|ationalWrestlingAlliance}}WA invades WWF was a truer example of this trope. New Japan's invasion with Wrestling/UniversalWrestlingFederation did actually involve both companies but was so one sided it actually contributed to the latter's death.
* Among some other examples truer to the spirit of this trope were Wrestling/{{A|llJapanWomensProWrestling}}JW vs LLPW, WWF vs Wrestling/SmokeyMountainWrestling, Wrestling/RingOfHonor vs Wrestling/DragonGate, ROH vs IWA Puerto Rico, ROH vs Wrestling/{{CZW}}, CZW vs IWA Mid-South, Wrestling/NewJapanProWrestling vs Wrestling/ProWrestlingNoah, Wrestling/AllJapanProWrestling vs Wrestling/ProWrestlingZero1, NJPW vs ROH, Wrestling/{{WSU}} vs Beyond.
* Subverted with Perros Del Mal Producciones, a company based around Wrestling/{{CMLL}}'s main rudo faction that was planned to be used for these purposes but broke away to make a deal with Wrestling/{{AAA}}. When PDM "invaded" AAA, the established rudo stables [[LegionOfDoom welcomed them into their Sociedad]].
* This is the purpose of the World Wrestling League's Dream Match Tours. It gets together wrestlers working in different promotions and countries who may otherwise never fight or team up, or at least may not do so anywhere [[OffScreenMomentOfAwesome where the target audience can see it.]]

* Don Bradman and Babe Ruth, widely recognized as the greatest ever players in cricket and baseball, respectively, met each other in 1932. While they didn't play against each other, certainly not in any formal capacity, Bradman offered Ruth the chance to try his hand at cricket. Ruth started by trying to bat cricket-style, and struggling to lay bat on ball, before switching to his baseball stance and hitting the Australian bowlers around the park. Ruth also took Bradman to watch a Yankees game, where Bradman surprised his host by spotting a double-play.
* Boxing had three of them, all of them featuring Muhammad Ali:
** The [[https://en.wikipedia.org/wiki/Fight_of_the_Century Fight of the Century]], the 1971 fight between WBA/WBC heavyweight champion Joe Frazier and lineal champion Muhammad Ali. It was the first time two undefeated heavyweight champions had met in the ring. Frazier won by decision in 15 rounds.
** The [[https://en.wikipedia.org/wiki/The_Rumble_in_the_Jungle Rumble in the Jungle]], the 1974 bout with heavyweight champion George Foreman. Ali, having come off his suspension from boxing for draft evasion, had successfully battled his way back to the top of the boxing world to take back the title from Foreman. Ali won the fight by knockout in eight rounds.
** The [[https://en.wikipedia.org/wiki/Thrilla_in_Manila Thrilla in Manila]], the 1975 rematch between Ali and Frazier, in which Ali won by TKO in 14 rounds to become undisputed heavyweight champion and taking a 2-1 career lead over Frazier.[[note]]The two had a second bout in 1974, but neither was champion at the time, Frazier having subsequently lost the title to Foreman[[/note]]
* Then in 2017 the "showdown" many people had speculated on over the years between pro boxing and UsefulNotes/MixedMartialArts happened, when champion boxer Floyd Mayweather Jr. met MMA champion Conor [=McGregor=] for a one-off fight using boxing rules. The referee stopped the fight after ten of a maximum twelve rounds when [=McGregor=] failed to defend himself, giving Mayweather victory. However, many observers who had expected the fight to be one-sided were surprised by how well [=McGregor=] performed under boxing constraints.

[[folder:Tabletop Games]]
* ''Who Would Win?'': ExactlyWhatItSaysOnTheTin. Two players each get a random character, and then an event. Argue why your character would win. Santa Claus vs. Genghis Khan in synchronized swimming? Babar vs. Einstein in ping pong?
* ''TabletopGame/{{Monsterpocalypse}}'' has basically two lines: one based on its own FantasyKitchenSink setting, and one based on ''Anime/{{Voltron}}''. Two ''compatible'' lines. Meaning you can end up with Drule Empire vs. NotZilla Terra Khan or even Voltron vs. [[EldritchAbomination Cthugrosh]].

[[folder:Video Games]]
* The ''Franchise/AlienVsPredator'' franchise is entirely devoted to this trope.
* ''VideoGame/DissidiaFinalFantasy'': The game, and 012 pit the lead characters from the first ten ''Franchise/FinalFantasy'' titles (first thirteen as of 012, and the first to a lesser extent) against each of their respective arch-foes from their respective worlds with the fate of TheMultiverse at stake.
* ''VideoGame/{{Scribblenauts}}'': allows for a nearly infinite number of these. Bigfoot versus Longcat, God + Shotgun + Skateboard versus Cthulhu, [[MemeticMutation T. Rex versus Robot Zombies...]] The fourth video found [[http://www.1up.com/do/previewPage?cId=3175442 here]] takes this to absurd lengths.
* ''VideoGame/{{MUGEN}}'': A custom FightingGame system which allows characters from different fighting games to battle aginast each other. It's gotten popular on Website/YouTube, especially [[Anime/DragonBallZ Perfect Cell]] vs. [[Manga/JoJosBizarreAdventure Dio Brando]], where Dio wins using his famous steam roller attack.
* ''VideoGame/CapcomVsWhatever'': The [[IntercontinuityCrossover Intercontinuity]] MassiveMultiplayerCrossover FightingGame series where a bunch of unconnected Capcom properties and unconnected properties from another company come together to see who's the best.
* ''VideoGame/WarriorsOrochi'': Koei's video game crossover between their Three Kingdoms China ''VideoGame/DynastyWarriors'' and their Sengoku Japan ''VideoGame/SamuraiWarriors'' franchises. By ''Warriors Orochi 3'', they also tossed in {{Guest Fighter}}s ''VideoGame/NinjaGaiden'''s Ryu Hayabusa, and UsefulNotes/TheTrojanWar's [[VideoGame/WarriorsLegendsOfTroy Achilles]].
* ''VideoGame/DynastyWarriorsGundam'': And when they didn't stop with Warriors, they decided to do the same thing to Gundam. But there are few things more awesome than watching completely unrelated Gundams ripping suits by the hundreds.
* ''VideoGame/CartoonNetworkPunchTimeExplosion'' and its updated sequel basically answers the questions of: what would happen if WesternAnimation/Ben10 and WesternAnimation/SamuraiJack met in a dark alley, [[WesternAnimation/CodenameKidsNextDoor Father]] and [[WesternAnimation/SamuraiJack Aku]] had a little fiery feud, and [[WesternAnimation/ThePowerpuffGirls Blossom]] and [[WesternAnimation/DextersLaboratory Dexter]] teamed up to fight Vilgax and [[WesternAnimation/TheGrimAdventuresOfBillyAndMandy Grim]] in [[WesternAnimation/TheMarvelousMisadventuresOfFlapjack Stormalong Harbor]]. The game answers these questions, and a whole lot more.
* A mod for ''VideoGame/{{Doom}}'' Source ports, ''Samsara'' allow you to play as VideoGame/{{Doom}}guy, [[VideoGame/ChexQuest Chex Warrior]], [[VideoGame/{{Heretic}} Corvus]], [[VideoGame/Wolfenstein3D B.J. Blazkowicz]], [[VideoGame/{{Hexen}} Parias]], VideoGame/{{Duke|Nukem3D}}, [[VideoGame/{{Marathon}} Security Officer]], and [[VideoGame/{{Quake}} Ranger]]. And in any game outside their own, their characters even have respective IdiosyncraticDifficultyLevels depending on which one you chose. They're also balanced for class based gameplay in deathmatches, capture the flag, etc.
** VideoGame/{{Doom}}guy: Damage (His weapons pack a heavy punch, particularly the Super Shotgun).
** [[VideoGame/ChexQuest Chex Warrior]]: Defense (Fred Chexter comes from a kid friendly game that contained [[NonLethalKO Non-Lethal KOs]], thus he takes the least amount of damage from attacks).
** [[VideoGame/{{Heretic}} Corvus]]: Utility (''VideoGame/{{Heretic}}'''s inventory system allows Corvus to deploy a variety of items).
** [[VideoGame/Wolfenstein3D B.J. Blazkowicz]]: Marksman (''VideoGame/Wolfenstein3D'' didn't have any shotgun type weapons and the weapons were pinpoint accurate).
** [[VideoGame/{{Hexen}} Parias]]: Brawler (He moves the fastest and takes reduced explosion damage, allowing him to get up close).
** VideoGame/{{Duke|Nukem3D}}: Crowd Control (Duke uses a jet pack and weapons with wide spread but can't take a lot of damage).
** [[VideoGame/{{Marathon}} Security Officer]]: Suppression (Despite having a reload system and bullets not being HitScan, the Security Guard's weapons have SecondaryFire and can saturate the area with weapons fire).
** [[VideoGame/{{Quake}} Ranger]]: Artillery (Ranger works the best using the rocket launcher, not only for raining hell but also for performing a RocketJump for mobility, it gets even worse for his enemies should he find QuadDamage.)
* ''Franchise/MortalKombat'':
** ''VideoGame/MortalKombatVsDCUniverse'': The final epic battle ends in a draw with only Superman and Raiden left standing, but the storyline does feature DC characters winning more fights than MK characters, due to their side of the story being a chapter longer. Perhaps most notable is a scene where a ''weakened'' Captain Marvel is able to defeat Scorpion, Baraka, and Shang Tsung in quick succession.
** ''VideoGame/MortalKombatX'' has become this through {{DLC}} {{Guest Fighter}}s including [[Franchise/FridayThe13th Jason Voorhees]], Franchise/{{Predator}}, [[Franchise/TheTexasChainsawMassacre Leatherface]], and a [[Franchise/{{Alien}} Xenomorph]]-Tarkatan hybrid.
* ''VideoGame/SuperSmashBros'' is the Nintendo example of this trope, as it pits the Nintendo characters against each other outside their respective worlds. As of the third game, third party characters have been joining the fun as well, allowing for match-ups like [[Franchise/SuperMarioBros Mario]] vs. [[Franchise/SonicTheHedgehog Sonic]], [[Franchise/TheLegendOfZelda Link]] vs. [[VideoGame/FinalFantasyVII Cloud]], or Franchise/{{Kirby}} vs. VideoGame/PacMan, to name a few.
* ''VideoGame/SoulCalibur'' 3, 4, and 5 all have the Create-A-Soul mode, which lets you build completely original characters. The games provide armor and equipment that lets you create characters from pretty much any franchise (within reason) and pit them against each other to see who's best. Some characters can be recreated with a striking degree of accuracy. You want one of [[Series/DoctorWho the Doctors?]] You can do it. Franchise/{{Batman}}? Harley Quinn? SelfDemonstrating/TheJoker? No problem. [[WesternAnimation/{{Futurama}} Zoidberg?]] WHY NOT ZOIDBERG? [[Wrestling/{{WWE}} The Undertaker?]] Absolutely. [[VideoGame/StreetFighterXTekken Bad Box-Art Mega Man?]] Paunchy stomach included. [[Franchise/AceAttorney Phoenix Wright?]] No objections here. Want to make the Franchise/PowerRangers? Just pick a color. [[ComicBook/XMen Cyclops? Jean Grey?]] Them and other mutants too. [[VideoGame/{{Pokemon}} Pikachu?]] I CHOOSE YOU! TheMissingNo? Somehow... yes. Doctor Doom? Heck yeah! Film/AustinPowers? YEAH, BABY! Creator/ChuckNorris? Do you even need to ask? [[WesternAnimation/AdventureTime Finn, Jake, and Princess Bubblegum?]] MATHEMATICAL! [[Series/MythBusters Jamie Hyneman?]] Myth Busted. [[Franchise/StarWars Queen Amidala?]] The Force is strong with this one. [[Anime/GhostInTheShellStandAloneComplex Motoko Kusanagi?]] 5 lets you recreate her right from the moment you first pop in the game. The characters are nearly endless, and all yours to pit against each other as you wish. [[http://fuckyeahsoulcaliburcreations.tumblr.com/ Just check out this Tumblr for hundreds of recreations from 5 alone.]]
* Speaking of which it was about the time that one of the default create options was [[Franchise/StreetFighter Chun Li]] that the ''VideoGame/WWEGames'' and others like them showed they were serious about this trope, going as far as having actual wrestlers where this could be invoked. Could Wrestling/HulkHogan beat Wrestling/StoneColdSteveAustin or Wrestling/JohnCena? Please, why stop there? Ever wondered who the best fighter in ''Franchise/StarTrek'' is? You can get your answer here. Think this is way to show it's better than ''Franchise/StarWars''? Which obscure characters do you want to make up to prove it? Want another ''Franchise/FinalFantasy'' fighter? Just pick the costumes you want them to wear. Could [[Series/DeadOrAlive Kasumi or Ryu]] beat Tina or Bass in their natural environment? Why not? What about if a fighter from ''VideoGame/SoulCalibur'' could hang without weapons? Could you, yourself, win NXT? Try it. Is WesternAnimation/KimPossible really a better fighter than Series/BuffyTheVampireSlayer? Or Buffy better than Faith? Or [[Franchise/MassEffect Commander Shepard?]] Heck you could recreate a fight in ''Series/{{Arrow}}'' or have them fight someone from ''WesternAnimation/{{Archer}}'' if you wanted.
* ''VideoGame/AsurasWrath'': Lost Episodes 1 and 2 pits Asura against ''VideoGame/StreetFighterIV'''s Ryu[=/=]Evil Ryu and Akuma[=/=]Oni. The latter had to be buffed up to Asura's level to stand a chance, of course.
* ''VideoGame/QuakeIIIArena'': pits ''VideoGame/{{Doom}}'', ''VideoGame/{{Quake}}'', ''VideoGame/QuakeII'', ''VideoGame/Wolfenstein3D'' and OriginalGeneration characters against each other in a fight for supremacy.
* ''Sherlock Holmes versus Arsène Lupin'': The Frogware 2007 game, known in some countries as ''Sherlock Holmes: Nemesis''.
* The ''WesternAnimation/FamilyGuy vs. WesternAnimation/AmericanDad'' web fighting game in promotion of the series' DVD releases; [[StreetFighter Ryu]] is the game's boss.
* In the ''VideoGame/HalfLife1'' mod ''The Specialists'', most character models are from some action movie (and two from video games): Smith Agents and Morpheus, from The Matrix; Castor, from Face/Off; Agent 47, from the Hitman series; and Gordon Freeman wearing a black trench coat. This means that it is impossible to play the game without an epic battle between action icons, unless everyone is using the generic Mercenary and Seal skins.
* ''VideoGame/ProjectXZone'' gives us [[VideoGame/TalesOfVesperia Yuri (with Estelle)]], considered as the biggest badass protagonist of the VideoGame/TalesSeries versus [[VideoGame/SuperRobotWarsOriginalGeneration Sanger]], Banpresto's biggest walking badass for one fight. This game also gives us [[Franchise/DevilMayCry Dante]] (with Demitri), versus [[VideoGame/{{Darkstalkers}} Jeddah]], a fight we wanted to see back in VideoGame/CapcomFightingEvolution.
* ''VideoGame/SuperRobotWarsZ'' has one battle where half of the cast filled with famous HumongousMecha anime fight with another half the cast filled with famous HumongousMecha anime. Who wins? The side you control has to win, so you can progress through the game.
* ''VideoGame/PlayStationAllStarsBattleRoyale'': [[ExactlyWhatItSaysOnTheTin it's right there in the title.]]
* In-universe example in ''VideoGame/BrothersInArms: Road to Hill 30'': [[ThoseTwoGuys Allen and Garnett]] start two missions by having an argument regarding who would win a fight between Batman and Superman.
* ''VideoGame/StarWarsBattlefrontII'' has two instances:
** This is the main point of the "Hero Assault" mode on Mos Eisley. In normal gameplay, a lucky player can become a HeroUnit such as Obi-Wan or Darth Vader. Mos Eisley offers an Assault mode, which is usually only seen in Space battles. This version has every single Hero Unit duking it out on one map. Every. Single. One. Yoda, General Grievous, Ki-Adi Mundi, Boba Fett, if he or she appeared on another map, he or she'll appear here. DLC for the Xbox verison of the game later added the mode to other maps, while also adding Kit Fisto and [[WesternAnimation/StarWarsCloneWars Asajj Ventress]].
** About halfway through the campaign mode, shortly after the Grand Army of the Republic turns into the Imperial Army, there's a sequence over a few missions where the player takes on a group of hiding Jedi, a reactivated army of battle droids on Mustafar and then another army of clone troopers on Kamino before the Rebellion gets off the ground.
* Thanks to the VideoGame/PuzzleAndDragons collaboration series, players can send a team consisting of [[Anime/DragonBallZ Goku]], [[VideoGame/FinalFantasyVII Cloud]], [[VideoGame/AngryBirds Red]], [[Anime/RebuildOfEvangelion Shinji (and Unit 001)]], and Franchise/HelloKitty off to fight ComicBook/{{Darkseid}}. Unfortunately, while both Goku and Superman are in the game, neither appear in the dungeons for the collaborations (most of them are villains only). So that showdown is avoided.
* ''VideoGame/SuperRobotWarsOriginalGeneration The Moon Dwellers'' delivers one hell of a showdown between [[Charactes/SuperRobotWarsAlphaGaiden Sanger Zonvolt]], a German samurai fresh from his ''VideoGame/ProjectXZone'' adventures (see above), and [[Characters/SuperRobotWarsJudgment Al-Van Lunks]] who is an alien knight. And both men use a {{BFS}} as their primary weapon. To explain further: In Al-Van's debut game, a lot of his sword skills [[{{Expy}} were very similar to Sanger's]] (who has debuted long before Al-Van), so fans have been clamoring for their showdown long before ''Judgment'' gets included into the OG-verse. The fans got their wish.
* ''VideoGame/TheLegendOfHeroesTrailsOfColdSteel II'' has the two protagonists, Rean Schwarzer and [[VideoGame/ZeroNoKiseki Lloyd Bannings]] meeting and fighting against each other during the Divertissment Chapter. Although players are controlling Lloyd and Rixia for this fight, the end result was that both had a stalemate, right before Rean brings out his big guns.
* ''VideoGame/UltimateEpicBattleSimulator'' is designed with this trope in mind, allowing players to pit a wide variety of fighters and armies against each other. As of the time of writing it allows historical factions such as World War II-era US Marines and Roman legionnaires, fictional units such as zombies and orcs, wildlife such as chickens and penguins, normally inanimate furniture such as cupboards, dinosaurs and Chuck Norris. Later updates would add armies such as ogres, [[Franchise/StarWars Jedi and Stormtroopers]] (albeit not named that for copyright reasons) and mechs from ''Franchise/RoboCop''.

[[folder:Visual Novels]]
* Franchise/{{Nasuverse}}:
** ''VisualNovel/FateStayNight'' revolves around Myth/KingArthur, [[Literature/TheEpicOfGilgamesh Gilgamesh]], [[Myth/ClassicalMythology Hercules]], Theatre/{{Medea}}, {{Medusa}}, [[Myth/CelticMythology Cu Chulainn]], UsefulNotes/SasakiKojiro, TheHashshashin and [[UsefulNotes/{{Zoroastrianism}} Angra Mainyu]] being summoned into modern day for a fight to death.
** ''LightNovel/FateZero'' Follows Myth/KingArthur, [[Literature/TheEpicOfGilgamesh Gilgamesh]], [[Myth/KingArthur Lancelot]], [[Myth/CelticMythology Diarmuid Ua Duibhne]], UsefulNotes/AlexanderTheGreat, [[UsefulNotes/JoanOfArc Gilles de Rais]], TheHashshashin and [[UsefulNotes/{{Zoroastrianism}} Angra Mainyu]] in a similar war.
** ''VideoGame/FateExtra'' changes it to [[UsefulNotes/{{Nero}} Nero]], [[Myth/JapaneseMythology Tamamo-no-Mae]], [[Myth/CelticMythology Cu Chulainn]], [[Literature/RomanceoftheThreeKingdoms Lu Bu Feng Xian]], [[UsefulNotes/SirFrancisDrake Francis Drake]], [[KingArthur Gawain]], RobinHood, [[UsefulNotes/DynastiesFromShangToQing Li Shu Wen]], [[Literature/AliceInWonderland Alice]], [[Literature/{{Dracula}} Vlad III]] and [[UsefulNotes/{{Buddhism}} Vairocana]], along with the creators' own [[VisualNovel/{{Tsukihime}} Arcueid Brunestud]] and [[LightNovel/KaraNoKyoukai Shiki Ryougi]].
** ''Anime/FatePrototype'' has Myth/KingArthur, [[Literature/TheEpicOfGilgamesh Gilgamesh]], [[Myth/ClassicalMythology Perseus]], [[Myth/CelticMythology Cu Chulainn]] and [[Literature/BookOfRevelation The Beast]] in a fight to the death instead.
** ''LightNovel/FateApocrypha'' takes it UpToEleven by having [[Literature/{{Nibelungenlied}} Siegfried]], [[Myth/ClassicalMythology Chiron]], [[{{Dracula}} Vlad III]], [[Literature/TheSongOfRoland Astolfo]], [[UsefulNotes/{{Spain}} Avicebron/Solomon Ibn Gabirol]], FrankensteinsMonster, and UsefulNotes/JackTheRipper working together as the Servants of Black to fight the Servants of Red, consisting of [[KingArthur Mordred]], [[Myth/GreekMythology Atalanta]], [[Literature/{{Mahabharata}} Karna]], [[Literature/{{TheIliad}} Achilles]], Creator/WilliamShakespeare, [[UsefulNotes/TheRomanEmpire Spartacus]], and [[UsefulNotes/{{TheMiddleEast}} Semiramis]]. Did we mention that they're headed by UsefulNotes/JoanOfArc and [[spoiler: [[UsefulNotes/{{AmakusaShiro}} Shiro Tokisada Amakusa]]]]?

[[folder:Web Animation]]
* ''WebAnimation/DeadFantasy'' shows what happens when a bunch of girls from the ''Franchise/FinalFantasy'' series go up against a bunch of girls from the ''VideoGame/DeadOrAlive'' series. [[spoiler:In case you didn't figure it out by yourself, it's {{fanservice}}.]]
* Website/ScrewAttack's ''WebAnimation/DeathBattle'': sets characters up against each other as well, from [[Franchise/StarWars Boba Fett]] vs. [[Franchise/{{Metroid}} Samus Aran]] to [[VideoGame/FinalFight Mike Haggar]] vs. [[Franchise/StreetFighter Zangief]] to [[Franchise/{{Transformers}} Starscream]] vs. [[WesternAnimation/MyLittlePonyFriendshipIsMagic Rainbow Dash]]. Notably not decided by votes, but by a look at each side's actual capabilities and extrapolating based on that.
** And for the 25th match they've did one for [[Anime/DragonBallZ Goku]] and Franchise/{{Superman}}. [[spoiler:Superman won.]] Boomstick, one of the show's hosts, was utterly euphoric when the fight finished because it meant everybody would finally stop asking them to do it. Of course, a LOT of people were unhappy with the result, so Death Battle did their first and so far only re-match for the 50th match. Same result. They then laid down very clearly why they were convinced that the fight would never turn out any other way, to curtail this happening again.
** The 35th match was Franchise/{{Godzilla}} vs Franchise/{{Gamera}}. You may [[{{Squee}} squeal]] now. [[spoiler:Godzilla won.]]
** The 39th match was SelfDemonstrating/{{Deadpool}} vs ComicBook/{{Deathstroke}}. [[spoiler:Deadpool won.]]
** The 44th match was Creator/ChuckNorris vs Advertising/SegataSanshiro. You may [[AwesomenessIsAForce faint]] and/or [[BigYes orgasm]] now. [[spoiler:[[RealityBreakingParadox They destroyed the universe in a]] '''tie''']].
** The [[Recap/DeathBattleS03E12HulkVsDoomsday 69th match]] was ComicBook/{{Hulk}} vs Doomsday. Yes it was awesome and brutal as it sounds. [[spoiler:Doomsday won.]]
** The [[MilestoneCelebration 75th match]] was the [[Series/MightyMorphinPowerRangers Power Ranger Megazord]] vs [[Anime/{{Voltron}} Lion Force Voltron]]. Yes, all your childhood dreams of giant robots just came true. [[spoiler:Voltron won]].
** The 85th match was [[Franchise/{{Naruto}} Naruto Uzumaki]] vs [[Franchise/{{Bleach}} Ichigo Kurosaki]]. Two members of the Holy Shonen Trinity duke it out. [[spoiler:Naruto won.]]
* Machinima.com has ''VideoGame/FalloutNewVegas Wasteland Battles'', pitting characters and enemies from ''VideoGame/{{Fallout 3}}'' and ''VideoGame/FalloutNewVegas'' against each other, and with the help of mods, even characters like [[StarWars Darth Vader]]. Not that it matters, because [[CurbStompBattle Liberty Prime]] [[https://www.youtube.com/watch?v=yjTVhj4gHCE beats everything.]]
* ''[[https://www.youtube.com/watch?v=da0WMS4ieJY Toys vs Toys]]'' is a stop-motion time travel story involving Link, Goku, Jean-Luc Picard, and various good guys from several franchises teaming up to stop Darth Vader and numerous bad guys from obtaining a time-traveling machine to take over the universe.

[[folder:Web Comics]]
* ''Webcomic/TalesFromThePit'' exposes "Who Would Win" as a favorite conversational topic of the ''TabletopGame/MagicTheGathering'' R&D team. Pairings include Franchise/RoboCop vs. The Franchise/{{Terminator}} and Franchise/MyLittlePony vs. the Franchise/{{Transformers}}.
* Dark Horse Comics asked who would win; [[Webcomic/TheAdventuresOfDrMcNinja Dr. McNinja]], or [[VideoGame/TeamFortress2 Saxton Hale]]? At the time of this edit, votes are [[http://www.darkhorse.com/Blog/686/dark-horse-vs-dr-mcninja-vs-saxton-hale still being accepted]]. Each character asked fans to vote for them on their [[http://drmcninja.com/ respective]] [[http://www.teamfortress.com/ websites]]. Votes are already done. Winner: [[spoiler:Saxton Hale.]]

[[folder:Web Original]]
* ''WebVideo/TheAnnoyingOrange'': In one episode, Liam the Leprechaun forces the orange to see if he was more annoying than WebVideo/{{Fred}}. It appears to end in a stalemate, only for Fred to get the last laugh.
* ''Advertising/WillItBlend'': Anything, at all, versus a Blend-Tec blender.
* The now-defunct [[http://www.grudge-match.com/ WWWF Grudge Match]] though the archives are still there, listing the more than 200 fights the site has run. The fights are formatted in that there is a proposed scenario and a very tongue-in-cheek debate, after which there will be a vote. When the loser has fallen, often hilarious comments on the result would be posted.
* ''WebVideo/ThePaulPowersShow'': Similar to ''WebAnimation/DeathBattle'', Paul's ''Who Would Win'' videos are dedicated to determining who would win in a one-on-one fight between two characters from different franchises.
* ''WebVideo/TheSpoonyExperiment'' has ''[[http://spoonyexperiment.com/2010/12/05/the-deadliest-character/ Deadliest Character]]'', a direct take-off of the aforementioned ''Series/DeadliestWarrior'', featuring the [[Franchise/PowerRangers Megazord]] vs. [[Franchise/{{Godzilla}} MechaGodzilla]]. [[spoiler:Megazord wins by summoning TheSixthRanger and tearing [=MechaGodzilla=] apart]]. The [[WhatMightHaveBeen uncreated]] second episode promised a showdown between [[Series/DoctorWho Dalek]] and [[Franchise/StarTrek Borg]].
* ''WebVideo/TGWTGYearOneBrawl'' brought together dozens of gamers and reviewers from Website/ThatGuyWithTheGlasses for an epic throwndown. The winner: [[spoiler:It's a huge draw as a truce is declared when they realize that they are all on the same team at the end of the day.]]
* ''[[http://screamsheet.wordpress.com/fights/ The Screamsheet]]'' has done weekly fights between a variety of characters since 2000. The fights have a loose continuity and several running jokes, such as Superman always losing and the Earth being destroyed multiple times.
* [[http://thelonelywinds.com/phpBB2/index.php The Lonely Winds forum]] has three sub-forums dedicated to various [=USoUDs=] in eight different leagues of various power level and compositions.
* History nerds are somewhat fond of debating Alexander the Great vs UsefulNotes/GenghisKhan. This battle actually happens in Creator/ArthurCClarke and Stephen Baxter's collaborative novel, ''Time's Eye''.
* Whosthebitch.com was the HQ for a fun and easy game; simply match any two given personalities (or even inanimate objects) and answer the question, "Who's the bitch?" Basically pick which one would be the 'bottom' in a relationship between the two, and justify your answer with an explanation.
* The Galactic Watercooler podcast has a recurring feature called [=Fantasy Sci-Fi League=] in which participants choose teams based on specific roles (warrior, pilot, reconnaissance, etc) and place them in a scenario such as the rescue of one of the podcasters from a [[Franchise/StarTrek Klingon]] prison planet, and give them some basic equipment (such as Carl Sagan's [=Starship of the Imagination=]). The winner is chosen based on the most entertaining way of completing a mission.
* The entire premise of ''WebVideo/EpicRapBattlesOfHistory'' is to pit (at least) 2 people, usually from different timelines or even universes, to do a BattleRapping against each other.
* ''Blog/TheBraveAndTheBoldTheLostIssues'' often sets Franchise/{{Batman}} or [[ComicBook/FantasticFour The Thing]] against various characters.
* ''WebVideo/VideoGameChampionshipWrestling'' is an ongoing web series that uses recreations of both famous and relatively obscure video game characters (as well as some from non-game-based franchises and even a few people from real life) in the ever-glitchy VideoGame/WWEVideoGames in AI versus AI matches. It maintains a regular roster of wrestlers, so rematches where a previous winner lost and a previous loser won have happened before, such as [[VideoGame/BarkleyShutUpAndJamGaiden Charles Barkley]] versus [[Franchise/DragonBall Vegeta, and Nappa]] versus [[Creator/ValveSoftware Gabe Newell]].
* While this is still upcoming, ''[[http://www.youtube.com/watch?v=MvpHThakNwU When Heroes Meet Champions]]'' is hyped to be an UltimateShowdownOfUltimateDestiny featuring characters from the two MultiplayerOnlineBattleArena juggernauts, as the title suggested: ''VideoGame/Dota2'' and ''VideoGame/LeagueOfLegends''. Already in the teaser we've seen possible battles of [[AnAxeToGrind Axe vs Darius]], [[{{Samurai}} Juggernaut vs Master Yi]], [[ActionGirl Legion Commander vs Katarina]], [[WhenTreesAttack Treant Protector vs Maokai]] and [[MegatonPunch Tusk vs Vi]].
* ''[[http://www.youtube.com/channel/UCZQPsy92dpejcCJfZDbp__Q batinthesun]]'' has ''WebVideo/SuperPowerBeatDown'', which pits fictional characters against each other in live action with great special effects. Victories are decided by fan votes.
* ''[[http://theboxingtribune.com/?s=what+if+heavyweight What If's Excellent Heavyweight Adventure]]'' uses the time machine from Film/BillAndTed and the World Cup soccer tournament format to create an AltHistory Ultimate Showdown of heavyweight boxers from 1910 to 1988.
* "[[http://www.youtube.com/watch?v=ORzUZbTec8U request of F]]", an ''VideoGame/ArmoredCore'' fan video made through the use of UsefulNotes/MikuMikuDance, showcases mechs from nearly every continuity of the franchise's ''17'' or so games and pits them into a 3-minute slugfest that doesn't require you to be an ''Armored Core'' fan to enjoy.
* The PAX Prime 2015 ''WebVideo/AcquisitionsIncorporated'' game is called "Darkmagic vs. [[Literature/TheDarkElfTrilogy Do'Urden]]", Jim Darkmagic being the (self-proclaimed) greatest wizard of the TabletopGame/ForgottenRealms.
* ''WebVideo/MinuteMatchUps'' does this with superheroes on both sides of the DC/Marvel divide, using their recent media portrayal, although the first episode actually matched up Deadpool from the [[Film/Deadpool2016 upcoming movie]] and Deadpool as Weapon XI from ''Film/XMenOriginsWolverine'' ([[spoiler:the former won]]). The other two episodes match up Green Arrow vs. Hawkeye ([[spoiler:Green Arrow put two arrows into Hawkeyes head]]) and the Flash vs. Quicksilver ([[spoiler:the Flash vaporized Quicksilver with "supersonic punch, baby, yeah!"]]).
* It's a frequent enough thread topic on certain {{imageboards}} that it's become the subject of parody, such as asking who would win in a fight between a trillion lions and the Sun, or insisting that a stick would be victorious in any matchup you can think of.

[[folder:Eastern Animation]]
* [[https://www.youtube.com/watch?v=3RukNQcnM4c The Great Battle between the Whale and the Elephant]]

[[folder:Western Animation]]
* MTV's ''WesternAnimation/CelebrityDeathmatch'' is a {{claymation}} version of ExactlyWhatItSaysOnTheTin. Matches have included ''Series/TheXFiles''' David Duchovny and Gillian Anderson vs. [[Film/MenInBlack Tommy Lee Jones and Will Smith]]; Bono vs. Fabio vs. Yoko Ono; Music/BetteMidler vs. Music/{{Cher}}; and [[Franchise/{{Batman}} Adam West vs. Christian Bale]].
%%* ''WesternAnimation/TheBatmanVsDracula''
* ''WesternAnimation/BambiMeetsGodzilla'' is very short and... well, let's just say the verdict isn't exactly surprising.
%%* ''[[http://www.youtube.com/watch?v=VujzyznQ4eE Son of Bambi vs. Godzilla]]''
%%* ''[[http://www.youtube.com/watch?v=1oCF-QFuoYs Godzilla vs. Charles Barkley]]''
* ''WesternAnimation/TheVentureBrothers'': [[ThoseTwoGuys 21 and 24]] often get into arguments about hypothetical fights such as Champ vs. Nessie or [[CrossesTheLineTwice Lizzie Borden vs. Anne Frank]].
* ''WesternAnimation/AdventureTime'':
** A college for worms has a "Theoretical fightonomics" class. According to the professor, the winner is always "Werewolf Queen".
** An episode which is simply titled "Who Would Win" has Finn and Jake getting into a very long all-out [[SiblingRivalry fraternal punch-up]]. It ends in a technical victory for Finn, but really in an exhausted stalemate.
** Invoked and Deconstructed in "Frost & Fire" where Finn tries to get Flame Princess to fight the Ice King in a Fire vs Ice themed battle. [[spoiler: It ends ''catastrophically'' with the Ice Kingdom getting razed, The Ice King almost getting killed, and Flame Princess breaking up with Finn when she learns of the details, because he hurt her. [[NiceJobBreakingItHero You blew it, Finn.]]]]
* The ''WesternAnimation/FamilyGuy'' episode "The Simpsons Guy" (crossover with ''WesternAnimation/TheSimpsons'') ends with a long, drawn-out battle between Homer Simpson and Peter Griffin reminiscent of the chicken fights from ''Family Guy'' (This is hinted to with Comic Book Guy appearing after the fight stating "Worst chicken fight ever!")
* In ''WesternAnimation/HomeMovies'', Brendon, Jason, and Melissa attend a Renaissance fair and reenact a meeting between King Arthur and Robin Hood. When they first meet, they have a showdown in the woods before Arthur decrees that he and Robin Hood are "best friends forever." When Robin Hood crosses a few lines and keeps robbing his BFF, they prepare to fight to the death before they are interrupted by a dragon. They team up to defeat it, only to wonder if they will continue their duel or not. The play gets interrupted before they can finish.

[[folder:Real Life]]
* Yalta, 1942. [[UsefulNotes/WinstonChurchill Winston "Brandy for Breakfast" Churchill]] and [[UsefulNotes/JosefStalin Josef "Steel Liver" Stalin]] have what is, in effect, [[http://www.bbc.co.uk/news/uk-22623251 a drinking contest]]. They go at it until three o'clock in the morning, but by one o'clock Churchill, suffering a "slight headache", has switched to wine. At which point Stalin presumably called him a pussy, fist-bumped Molotov, and cracked another bottle of vodka.
* Boxing spar: '''Creator/BrianBlessed''' vs [[UsefulNotes/{{Tibet}} His Holiness the Dalai Lama]]. [[OddFriendship They bonded over their love of boxing in their youths.]]
* Historical matchups such as Genghis Kahn vs. Alexander the Great have been discussed among scholars.