No matter what continent they might live in, the most dire enemies for many anime and manga fans are very often [[BrokenBase other anime and manga fans]].

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* ''Franchise/{{Digimon}}'':
** There was an awful lot of disagreement over the seasons after ''Anime/DigimonAdventure''. Did ''[[Anime/DigimonAdventure02 02]]'' suck because it downplayed the original team in favor of the newbies while being too dependent on ''Adventure'' and not being as dark as ''Tamers''? Did ''[[Anime/DigimonTamers Tamers]]'' suck because it was too serious, or because it took place in an AlternateUniverse? Did ''[[Anime/DigimonFrontier Frontier]]'' suck because it moved away from the very concept of {{Mons}}?
** [[TheMovie Digimon: The Movie]] is either considered an epic piece of nostalgia from the year 2000 or a brutal butchering of the original three Japanese movies.
* ''Anime/SailorMoonCrystal'':
** The designs for ''Crystal'' have fans divided: some hate the NoodlePeople character designs, while others love them for being artistically TruerToTheText. John Stocker, one of the directors of the 90s Canadian dub commented the skinny designs made them look spider-like and unrealistic.
** New [=VAs=]: Some are happy Creator/KotonoMitsuishi is back, others wish that the title role had been recast; or, by contrast, that the entire classic cast had {{Role Reprisal}}s.
** Ami being introduced in Act 2. Some like the return to the manga's pacing for cutting the fat from the story, while others say that Usagi's time as a solo hero was an important part of her CharacterDevelopment in the previous anime.
** The anime, despite being advertised as being TruerToTheText, ''still'' deviating from the manga, like making Minako come across more as a loner (a reference or trait carried over from the live action [=PGSM=] series), making Sailor Moon be the one to ultimately kill Queen Beryl (when it was Venus in the manga) or letting the Shitennou live beyond their respective episodes. Some know that this has to do with episodes running longer than a ~30 page manga chapter, others feel cheated that the advertising lied to them and they still do not have an animated version of the manga.
* While not as extreme as some others, the fanbase of ''Anime/TengenToppaGurrenLagann'' still remains split as to whether the series' end is an incredibly heartfelt BittersweetEnding or the writers [[BrokenAesop breaking their own aesop]] just to make an [[ShootTheShaggyDog overly and needlessly]] CruelTwistEnding.
* ''Manga/FullmetalAlchemist'' fandom when it comes to the manga and ''Brotherhood'' (the second anime that follows its continuity) versus [[Anime/FullmetalAlchemist the 2003 anime]]. The latter was a PragmaticAdaptation that OvertookTheManga, and thus there are ''huge'' differences in plot, character development, and even themes between the two continuities. While most fans like both to at least some extent, nearly all have a preference one way or the other, and the fandom remains fiercely divided over which is better.
* ''Franchise/{{Pokemon}}'':
** Misty's [[PutOnABus departure]] pretty much split the [[Anime/{{Pokemon}} anime]] fandom into those that won't have anything to do with any episodes past Johto and those that openly embrace the newer episodes.
** ''Best Wishes'' divided the people again. The people who felt the anime had dropped in quality past its first season enjoy the series for generally feeling like a return to form in pacing and style, as well as [[TerribleTrio Team Rocket]] [[NotSoHarmless actually being a legitimate threat]]; while the people who enjoyed the anime and thought that it improved past its first season[[note]]And love Team Rocket as {{Ineffectual Sympathetic Villain}}s[[/note]] hate this "step backward".
** Generally, ''Diamond and Pearl'' vs ''Best Wishes'', due to the sagas being so different from each other.
** There's also a divide between people who like the anime and people who think [[InkStainAdaptation it does more harm than good for the games]]. The latter tend to want an adaptation that's [[TruerToTheText truer to the games]], like ''Anime/PokemonOrigins''.
** The topic of Ash [[NotAllowedToGrowUp aging]] is something that fans discuss a lot. It was assumed he was at least twelve by the end of ''Diamond and Pearl'' however the ''Unova'' arcs debunked that by explicitly referring to him as a ten year old. Whether Ash should ever age and to what degree is always coming up in the fandom.
** There are large debates between which adaptations are the best, mostly "Manga vs (original) Anime" though "Pokemon Special vs Other Manga" (especially ''Manga/PokemonDiamondAndPearlAdventure'' as its one of the few localized series) isn't unknown.
** Certain ''Manga/PokemonAdventures'' changes are this. The most common is the AdaptationalVillainy of the Indigo Elite 4 and several of their gym leaders: Interesting changes that made the manga more interesting or an OutOfCharacter defilement that was only used to make the series seem DarkerAndEdgier. There are also those who are upset that the characters don't match their game personalities or their {{fanon}} interpretations (such as White not being a {{tomboy}} or Shauna suffering an AdaptationalAngstUpgrade).
* ''Franchise/{{Gundam}}'' suffers this in spades. The stereotypical portrayal of the fandom is essentially older fans shouting "ItsPopularNowItSucks", while the fans who got into the franchise through newer shows like ''Anime/MobileSuitGundamWing'' and ''Anime/MobileSuitGundamSEED'' mock them for their TrueArtIsAngsty attitude. This attitude was a lot more prevalent in the early 2000s when ''Anime/MobileSuitGundam Wing'' became many people's GatewaySeries into both anime in general and ''Gundam'' in specific, but has cooled down a good bit.
* ''Franchise/YuGiOh'':
** The franchise has a ''very'' broken fanbase, starting within the [[Anime/YuGiOh original series]] where fans dispute the canon-ness of Noa's Arc, DOMA, and the KC Grand Prix, with many fans arguing that non-manga arcs were never canon and should not have been made. Then after the original series ended, conflicts arose within and around its spinoffs, ''[[Anime/YuGiOhGX GX]]'', [[Anime/YuGiOh5Ds 5D's]], and most recently [[Anime/YuGiOhZexal ZEXAL]]. There are some who enjoyed ''GX'', some who hated it from the very beginning, and some who watched it through then suddenly began talking about how much they hated it all along. Many GX fans say that it did not end as well as it should have, with some fans complaining that it was cut short to make room for 5D's. Even so, 5D's with its ridiculous motorcycle dueling premise was and is still laughed at and not taken seriously by fans of the original series. But 5D's, small fandom and all, has been generally more liked than GX, leading GX fans feeling like they were left out and that GX became the BlackSheep of the franchise.
** There is a small portion of the fandom that dislikes LittleKuriboh's Abridged Series (although they may have liked it at an earlier point in time), on the basis that it "twists" and "makes needless fun of the source material", with ''most likely unintended disservice'' to the spinoffs and their fanbases. (e.g. "I just realized what the "D" stands for in "Yu-Gi-Oh! 5D's"! "DONTWATCHIT!" ")
* ''Manga/DeathNote''. Is [[AGodAmI Light Yagami]] a dark and interesting AntiHero whose [[UtopiaJustifiesTheMeans plans for Utopia]] [[TheExtremistWasRight actually brings out actual benefits for the world]], or an out and out VillainProtagonist? Was it right for the series to end with [[spoiler: [[LaserGuidedKarma his downfall]]]], or should he have [[spoiler: somehow managed to KarmaHoudini his way out of it]]? Is Near just a pale imitation of [[LooksLikeCesare L]] or an interesting character in his own right? Is Matt/Mello inherently superior to Mello/Near? Does Misa really [[DieForOurShip come between]] Light and L? Is it even worth continuing with after [[spoiler: L dies]]? One thing's for certain: you're probably better off [[MisaimedFandom not asking]] some of the fans. Was it Mikami's or Light's fault for Kira's [[spoiler: Kira's defeat which caused by SpannerInTheWorks]]? Did Ryuk get what he wanted in the end?
* ''Anime/TenchiMuyo'' Are the original [[Anime/TenchiMuyoRyoOhki OVAs]] the superior ''Tenchi'' series, or is ''Anime/TenchiUniverse'' better? Is the 3rd OVA legitimately good, okay but flawed, or a complete pile of crap? Is ''Anime/TenchiInTokyo'' a perfectly enjoyable spinoff, or is it a complete waste of time that {{flanderiz|ation}}es all of the characters? Is [[Anime/TenchiMuyoGXP GXP]] a well-done sidestory that fleshes out the OVA's setting, or a [[FanService fanservice]]-filled mess of epic proportions? Should ''Anime/PrettySammy'' be considered a Tenchi series? Should the Tenchi Muyo manga be considered canon? The world may never know.
* The Endless Eight arc of ''[[LightNovel/HaruhiSuzumiya The Melancholy Of Haruhi Suzumiya]]'' anime has sharply divided the once-strong fanbase. The main problem wasn't that it was adapted, it's that one small story was adapted into 8 full episodes with the exact same events each time, and that those 8 episodes took up the majority of the second season's episode count. Add in the fact that the fandom were expecting, after being teased that it would happen, that the series' probably most celebrated story arc would be adapted that season and instead got Endless Eight without being told how long it would last, so a lot of fans kept clinging to the hope that EE would end soon and the next arc would start, but with every new Endless Eight crushing that hope, well, you can probably see where some fans are coming from.
** Unique in that it managed to not only split the fan base, but the entire cast and directing crew as well. Some people got in serious trouble over Endless Eight and the fan reaction.
* Fans of ''Anime/NeonGenesisEvangelion'' split over which ending is "better": the original TV series ending or the one from ''End of Evangelion.'' Or whether these two are technically the same ending.
* ''Manga/FairyTail'' fandom is extremely divided on the subject of Jellal Fernandez. A major player in Erza's backstory, he made his appearance in the Tower of Paradise arc, which concluded with the manga's hundredth chapter, [[spoiler: although technically, he'd been around since the second page of the first chapter]]. He has appeared in every single arc since then, in some form or another, and opinions are very mixed on if this is a good thing or not. One large segment of the fandom thinks that the unfolding drama is interesting, another thinks that he's worn out his welcome and needs to go away for good. Divisions are, unsurprisingly, very often drawn along fandom lines.
* ''Manga/{{Bleach}}'':
** You know the base is broken when, on this very wiki, the ''exact same event'' ([[spoiler:the strongest - maybe - member of the QuirkyMinibossSquad being [[CrazyAwesome killed by a children's game]], not to mention the user's ''shikai'']]) is listed as both a [[CrowningMomentOfAwesome Crowning Moment]] ''and'' an {{Anticlimax}}.
** There's even more: [[spoiler:Aizen's]] VillainousBreakdown, was it a case of VillainDecay, or was it a believable VillainousBSOD that he only had coming? To elaborate, some say that his extreme arrogance, over-reliance on brute force and complete foregoing of tactics or his Zanpakuto's illusions once embedding the Hogyoku into his chest, as well as the desperate rants that came when he started getting curb-stomped, were not only bland and predictable, but served as a cheap ploy to make TheHero beating him easier--since he wouldn't use anything else that couldn't be beaten with brute force. They claim that he was stripped of everything that initially made him a convincing, interesting villain, because the author was too lazy to write around an consistently smart FinalBoss.
** There's some BrokenBase reaction to the Thousand Year Blood War arc, as well. Many fans appreciate the DarkerAndEdgier turn, with protagonists dying for the first time and a set of villains who disregard HonorBeforeReason battle tropes. The arc has also been rapidly resolving questions that had been left open for ''years'', making the plot much less predictable. Others feel that Soul Society's reactions have been [[IdiotBall uncharacteristically stupid]], the villains are not as compelling as individual characters as the Arrancar, and Ichigo is approaching CanonSue status. How well the arc wraps up may determine what the consensus verdict eventually is.
** The designs for Squad Zero. Sufficiently quirky and unique, or goofy looking and looking like they stepped out of an entirely different series?
** The fact that [[spoiler: Ichigo's mother was a Quincy]]. A lot of fans find the accompanying backstory interesting and believe that it was something the author had planned. Others think that it's just another AssPull in a long line of [[AssPull Ass Pulls]], and that it rockets Ichigo straight into CanonSue territory.
* Manga/HayateTheCombatButler. Serious vs Comedy story. Athena/Anti-Athena. [[spoiler: Whether Athena leaving is good for the story or not.]]
* The manga VS anime version of [[ViolinistOfHameln The Violinist of Hameln]]. The tone of the anime is very serious, whereas the manga is a dramedy, and most characters had a personality change. A lot of fans find the anime superior, whereas most fans of the manga will not talk about the TV series. The TV series is not canon, but the OVA is based off the anime, leading many fans of the TV series to likewise hate the OVA and pretend it doesn't exist, whereas fans of the OVA often hate the TV series.
* ''Franchise/DragonBall'':
** Is [[Anime/DragonBallZ Bruce Faulconer's]] music better than [[Anime/DragonBallGT Mark Menza's]]? Is Shunsuke Kikuchi's music better than Bruce Faulconer's? Is [[Anime/DragonBallKai Kenji Yamamoto's]] music better than Shunsuke Kikuchi's? Is ''Manga/DragonBall'' a vital part of the story or a boring prequel to ''Anime/DragonBallZ''? Is ''Manga/DragonBallKai'' [[AdaptationDistillation an improvement]] or [[AdaptationDecay an abomination]]? Should Creator/ToeiAnimation have made ''Anime/DragonBallGT''? And we're still only at the tip of the iceberg here...
** There's also the long standing debate about who's the strongest human - Krillin or Tenshinhan. The term is more often used in reference to Krillin, between video games saying so and Yamcha's actual declaration that Krillin's the strongest human in the Buu Saga. On the other hand Tenshinhan's battle accomplishments (though fewer as he's a much more minor character) often seem much more impressive than Krillin's. To be fair, [[TakeAThirdOption there is a good possibility that Tenshinhan isn't entirely human anyway]], making the statement of Krillin being the strongest human accurate even ''if'' Tenshinhan were definitively stronger.
** There are still many debates about who is stronger between [=SSJ3=] Goku and Ultimate Gohan. The debate also extends to Super Buu vs Kid Buu.
** ''Dragon Ball Minus''. Is it a refreshing and new take on Goku's origin story and those of his parents that gives greater insight into how Goku became the man he was, or is it an abomination/money grab that retcons a beloved TV special that has stood as canon for almost twenty-five years. Does not help that people more familiar with the anime claims ''Minus'' contradicts story elements that were anime exclusives and were never in the original manga. Also, the author proclaiming his love for the TV special and then writing it out of existence got some fans steaming.
** Was it a cop-out for Goku to return as the main hero instead of Gohan after the Cell Saga, or were Japanese fans and even the author, eventually, right that Gohan did not fit the role as main hero as well as Goku. Or, should the series have stopped after Frieza or Cell Sage? Was the Buu Sage a seasonal rot or a returned to the humor and light-hardheartedness of the original Dragon Ball. Was Buu a good villain or was he shallow and too childish compared to Frieza and Cell.
** Which is better: ''Dragon Ball'' or ''Dragon Ball Z''? Most fans lean to the latter especially due to SequelDisplacement however many fans of the pre-Z series loathe ''Z'' or consider it inferior. Goku being a saiyan [[ItWasHisSled isn't even a spoiler anymore]] however the topic of whether Goku being an alien is a ShockingSwerve or not depends on the fan.
* ''Manga/BlackButler'':
** Fans were hating on the second season even before it premiered because it sounded like it would focus solely on a new Butler/Master pair, [[InNameOnly thus abandoning any remaining connections it had to the manga which spawned it]]. Now that it has [[spoiler: and it's revealed that Sebastian and Ciel are still the main characters rather than Alois and Claude]] fans have divided themselves between the two duos.
** Not to mention the ''major'' divide between the "manga fans" and "anime fans" since the former basically declared CanonDiscontinuity ever since the first season of the anime decided to go more into [[YaoiFangirl Yaoi pandering]] FanService and making up its own story line with [[{{Flanderization}} roughly]] the same characters instead of actually adapting the source material (Only one arc was properly adapted without adding filler/original content). This meant the entirely original second season got even more hate since it seemed to indicate that the [[GrowingTheBeard "Noah's arc circus" Storyline]] would ''never'' be animated. This ended up not being true, with the series getting a third season that picked up the manga storyline where the anime left off, and including the "Book of Circus" plot. Which, of course, only further enflamed the "anime vs. manga" wars.
** The Yaoi and Shota aspects themselves can be a major BaseBreaker as well, since the manga had it be a humorous side element, [[WordOfGod which was never meant to be taken seriously]], and is easily ignorable to those who find it too {{Squick}}y while the anime focuses more on it which resulted in it being the major "theme" of the second season, isolating any non-[[YaoiFangirl fujoshi]] members of the fandom (of which there are ''many'').
** Grell Sutcliff's gender. Some are adamant about calling Grell female (more specifically, a male-to-female transsexual), as it's confirmed by WordOfGod and saying otherwise is considered trans erasure. Others disregard it; while there are people who assert [[HetIsEw Grell is male in order to make Grell fit into slash pairings]], there are those who feel that having the character's gender confirmed outside of the anime or manga is a pretty weak move and that Grell's unusual character makes it difficult to pin a gender on them in the first place.
* ''[[Manga/MagicalGirlLyricalNanoha Nanoha]] FORCE'' and ''Manga/MagicalGirlLyricalNanohaVivid'' mangas. [=ViVid=] was well received, but a significant minority of readers who had been fans of [=StrikerS=] and the sci-fi direction the franchise had gone in looked down on it. Force, meanwhile, is rarely viewed with better than neutrality; it has almost completely ditched the MagicalGirl elements, has a male protagonist (which set the [[BishoujoGenre Bishojo]] and {{Lolicon}} fans up in arms) and set off a LensmanArmsRace of [[StoryBreakerPower Story Breaker Powers]], which angered the science fiction half of the fandom.
* ''Anime/{{Macross}}'':
** ''Anime/{{Macross}}'' versus ''Anime/{{Robotech}}'' wars sometimes occur [[labelnote:Explanation]]''Robotech'''s first season was basically just a CulturalTranslation of ''Anime/SuperDimensionFortressMacross''[[/labelnote]]. A bad example flared up on the [=MacrossWorld=] forums after [=AnimEigo=] announced they had squared the circle and cut the Gordian Knot and gained a license to release the original Macross on DVD. Numerous ''Robotech'' fans descended on the MW forums to complain that this somehow spelled the end of ''Robotech''. [[FlameWar Flame wars]] became frequent.
** ''Anime/MacrossFrontier'' has the question of whether the NonSerialMovie variant is better than the anime series. Basically the question boils down to what is better; [[spoiler:lighter ending of the original series that does not resolve the LoveTriangle, or the somewhat darker ending provided by the movies which does resolve the triangle?]]
* ''Anime/{{Slayers}}'' has had ''several'' variations of the broken base:
** The first is the third anime season, ''Slayers TRY'': in the late 90's/2000's when it came out, it deviated in formula and story from the first two seasons (darker plot, downplayed humor, and one villain to chase as opposed to a multitude), and the main characters become peripheral to GuestStarPartyMember Filia and antagonist Valgaav. Because of this, it's either the most well-loved season or regarded as a piece of crap - it's even referred to as such by some professional reviewers.
** Then when the [[SavedFromDevelopmentHell fourth and fifth seasons,]] which had been shelved for a decade, were finally released, divisiveness was cast on both of them on whether they were a welcome addition or completely unnecessary; the quality of its story is also a hot-button subject.
** When the light novels came out, out comes a split between those fans and anime fans, not just for the story, but for characterization - the IdiotHero Gourry in the novels [[ObfuscatingStupidity acts stupid for fun]] and is a jokester, while he's a borderline IdiotSavant in the anime with a good heart; Zelgadis is colder but more dignified, Amelia is ''far'' more mature, and Lina doesn't run on a HairTriggerTemper and is nowhere near the bully or near-GodModeSue she is in the anime (and to go with that is if she's still a landmark example of a female protagonist or a case of CreatorsPet).
* ''Manga/{{Planetes}}'' fandom, while mostly remaining genuinely civil, is still rather sharply divided over the anime/manga lines. While both sides generally admit ''both'' incarnations' strong points, many manga fans feel that anime is too melodramatic and tries to hide from the serious issues raised in the original behind the curtain of {{Wangst}} and slapstick. Anime fans, OTOH, often find the manga too cerebral and filled with ContemplateOurNavels moments, leaving it somewhat dry.
* ''Franchise/{{Zoids}}'' fandom used to be split between fans of ''Anime/ZoidsChaoticCentury'' and ''Anime/ZoidsNewCentury''. After ''Anime/ZoidsFuzors'' premiered, CC and NC fans alike [[TakeAThirdOption used it as their go-to bashing target]]. ''Anime/ZoidsGenesis'' further complicated things. There's also a divide in the fandom between fans of the model kits/battle story and fans of the anime.
* The GrandFinale of the ''ShugoChara'' manga. Was it a fitting end to the series or just everyone getting StrangledByTheRedString and leaving plot threads hanging?
* ''Anime/MaiHime'': The ending: Is it the happy one that [[EarnYourHappyEnding the characters deserve]]? Or is it a blatant case of a DeusExMachina and/or not befitting the dark nature of the late series?
* Some ''Anime/{{Patlabor}}'' fans prefer the comical TV series. Some prefer the much more serious movies. Other fans like the original OVA which is somewhere in-between the two. Don't even get us started on Wasted XIII which is either a great science fiction mystery-thriller or a boring, cliched film that has nothing to do with Patlabor outside the last five minutes.
* ''Manga/CardcaptorSakura'': The romance between [[spoiler: an elementary school aged girl and ''her teacher'']]. Fans either loved it (and found it fitting with the series' moral) or found it absolutely disgusting and/or disliked the sugary way it was treated.
* Among translators of anime/manga/visual novels: keeping or not keeping the UsefulNotes/JapaneseHonorifics? Some think it reinforces the Japanese flavor, and that it gives informations on relationships between the characters that would be LostInTranslation otherwise. Others think that keeping them gives the impression of a lazy, half-assed translation, and that the aformentioned information can generally be translated in another way or is given by the context anyway. The issue gets even more complicated when said honorrifics are used in nicknames (like, say, "Kei-chan"). Add to that the sibling terminology (nii-san/nii-sama, tō-chan/otō-san/otō-sama, etc.) and some cases where honorifics are added to common nouns, and no two translators can agree on what to do. Even ''official translations'' aren't protected from it.
* It would be almost easier to list what ''hasn'''t caused the ''Webcomic/AxisPowersHetalia'' fanbase to break:
** The anime is despised by a faction of fans for its shortcuts and cheap animation tactics, along with whitewashing several character. Others don't mind the anime, or consider it their gateway into the series.
** The controversy over the South Korea character [[note]]which lead to him being abruptly dropped from the anime due to internet protests by Korean netizens[[/note]] caused a rift, along with some ongoing debate as to whether he isn't that bad of a stereotype or highly offensive and shameful.
** The very setting of WWII is of course, subject to controversy even among fans. Is the series better when it's focusing on the war and "more historical" stories, or was it better for Himaruya to divert his attention to other eras? A quite heated debate.
** The very existence of female nations in the series. Fans argue whether Himaruya is being unintentionally sexist in not including more of them, intentionally misogynistic, if there should even be more women, or if the male nations are more worthwhile to focus on and if the female ones are just "useless" filler.
** "2Ptalia", which spawned from Himaruya's alternative colorings/personalities for characters, was spun off into its own series of character redesigns by different fanartists. Where the base breaking comes in? Some laud the fans' 2P recolorings as BetterThanCanon and bash the originals, while others will bash the 2P versions and insist that they're mockery of the original.
** England's name. It's common to hear fans call him "UK" and [[FlipFlopOfGod even canon uses it sometimes]]. It's not uncommon to see fans get mad about others using it though, especially since there are other characters that embody UK countries.
* ''Anime/ScienceNinjaTeamGatchaman'':
** ''Anime/ScienceNinjaTeamGatchaman'' vs. its multiple English adaptations. While ''Anime/BattleOfThePlanets'' is lambasted for turning the franchise into a joke and being one of the early examples of {{Macekre}}, there are just as many fans that will defend the flaws present (or love it in spite of such) and insist that it is the superior dubbed adaptation by the fact it came first, had a high budget, and was a source of much '70s childhood nostalgia.
** ''Anime/GForceGuardiansOfSpace'' (the second English adaptation) has less of a vocal fanbase, although its fans can go head-to-head with those of the BOTP faction. In discussions, users from each group can stand the chance of relentlessly bashing the adaptation (and its fans) that they didn't grow up with, while defending the flaws present in the one from their own era. With ''G-Force'', the debate becomes a matter of if it only ruined Gatchaman further with the corny names chosen for the characters and the infamously rushed dub job. On the opposing end, G-Force fans will say it's the closest to the source material (before ADV's dub) and that alone makes it better than Sandy Frank's version. This base breakage even goes as far back to Usenet fandom days, when BOTP fans became angered that Cartoon Network opted to run the "inferior dub job" rather than what they knew best as kids.
** Most recently, this trope is invoked with the existence of ''Anime/GatchamanCrowds''. There are fans that don't mind it being an InNameOnly reboot of the franchise and that enjoy it on its own terms, while other fans insist it's a cheap cash-in on the title and that it threatens to ruin the reputation of Gatchaman.
* The ResetButtonEnding in ''VisualNovel/{{Clannad}} ~After Story~'' is a big one for fans. Is it a nice way to send the series out on a high note after some heavy {{Tear Jerker}}s or just a DeusExMachina?
* ''Manga/AttackOnTitan'':
** [[SpellMyNameWithAnS The spelling]] of many characters. Whether people should accept the official spellings like Levi for example, or fan spellings like Rivaille.
** The art style of the manga. Isayama seems to prefer shading and making shadows with crosshatching instead of the traditional solid inking methods. Some like this, feeling that it's a good match for the dark and gritty story, others don't care, and some think that it's a negative point. The anime represents this with bold outlines for most characters and objects, which most people don't seem to object to at all.
** Some readers of the manga feel disappointed by the direction the story has taken after the Battle of Trost, having expected a survival story focusing on the humans fighting the Titans rather than on the Titans themselves. They often tend to claim that the series lost its potential with the path it has taken, and that the twists the manga provides concerning the Titans are cheap. Others like how the story has progressed, noting that the manga has answered some questions while providing others.
** On the Website/{{Tumblr}} side of the fandom, the interpretation of various members of the cast as "People of Color" by social justice advocates. They see it as a progressive subversion of MonochromeCasting that pushes people to overlook their own prejudices, but others see it as a [[PoliticalCorrectnessGoneMad highly misguided application of political correctness]] that [[FanonDiscontinuity ignores]] the post-apocalyptic setting and characters' statements on the subject. Of note are Marco, who is a popular choice for such portrayals despite having the same skin tone as Jean in the anime, and Ymir, who is light-skinned in the manga but a [[AmbiguouslyBrown little darker]] than her peers in the anime, and therefore widely assumed to be of African descent by the social justice fans. [[TakeAThirdOption A third group exists]] which engages in it while acknowledging it as a RaceLift[=/=][[AlternateUniverseFic AU]] with respect to the original canon--they only do it as a fun exercise in creativity. Reaches ridiculous levels when you get to the ones who attack others for portraying characters with overly light skin and accuse them of whitewashing. [[EverythingIsRacist For giving characters the skin colors that they have in the actual anime or manga]].
** The 25th episode's differences from the corresponding manga chapters, including [[spoiler: Eren]] entering a sort of SuperMode while fighting [[spoiler: Annie]], Armin being replaced with Mikasa in some scenes, changing [[spoiler:how Annie was finally defeated and her crystallization scene]], and the [[spoiler: "Titans in the Wall"]] [[TheReveal reveal]] being delayed until the episode's end (meaning none of the characters saw it). Some fans claim the show is RuinedForever due to the changes in themes and character dynamics, some dislike the changes, but don't see them as a big deal, and some think the changes improve the plot.
** The statement by the author that he has [[http://cecil-lulu.tumblr.com/post/69114737078/in-light-of-the-recent-news-of-a-attack-on-titan reconsidered]] what seemed to be a darker ending for the story due to the fanbase growing in size after the anime aired has been plenty controversial.
* ''Anime/{{Glasslip}}'' has a lot of this. While generally panned for its episodic nature and and the introduction of plot elements that don't get much explanation in-show (like the ability to see the future in sparkly objects), there is still a big fan base who loves the show for its treatment of teenage friendship and romance, its use of symbolism regarding those, its [[SceneryPorn gorgeous setting]] and its character development which tends to be more on the subtle side.
* The first season to ''Anime/AldnoahZero'' ended with seemingly two extremely major deaths. Come season two and it turns out neither actually died. Many fans deemed it a WriterCopOut while others were happy they survived.
* The ''Manga/SchoolLive'' fandom is very broken up over the anime adaptation. A large portion of people who read the manga first loathe it for changing [[AdaptationPersonalityChange characterizations]], introducing [[SpotlightStealingSquad Taroumaru]], adding [[LighterAndSofter more fluff]] than in the manga, and toning down several of the darker scenes (such as [[spoiler:Yuuri freaking out over having to kill a zombifying Kurumi]] and removing both [[spoiler:Yuuri freaking out over the helicopter crash]] and [[spoiler:Yuki killing a zombie for the first time]]). Many anime-only fans love the series and will argue it's better than the manga. There's not much of a middle ground with fans.
* ''Manga/HunterXHunter'' has this between fans of the 1999 adaptation vs the TruerToTheText 2011 adaptation vs the manga. The differences both [[AdaptationPersonalityChange personality wise]], character design wise, [[TheOtherDarrin voice actor wise]], and story wise between the adaptations are always mentioned in discussions. Is 1999 the far superior adaptation or is it an inaccurate mess with poor animation that ruined the manga? Is 2011 an amazing anime or is it horrible in comparison to the 1999 version? Then there are manga fans who consider both rubbish adaptations.
* ''Franchise/LoveLive School Idol Project'':
** Over the last episode of the anime's first season. Opinions are heavily split about Honoka's reactions to what happened in said episode, whether or not the actions taken by the rest of the group were justified, and some complained about how much more drama the episode had compared to most of the others.
** Whether people whose only exposure to the franchise is through ''School Idol Festival'' should be considered proper fans, a topic similar to arguments over ''VideoGame/{{Touhou}}'' fans who have never played the games.
** The news that the voice actresses behind µ's would no longer be voicing or performing as the characters after April 2016 due to their contract expiring quickly divided the fanbase. Some fans are disappointed and think that it was too soon for them to break up, especially now that the franchise has gained so much popularity, while others are sad but still find it understandable since they'd been active since 2010, when the franchise started.
** As one can expect, fan opinions are divided over the Aqours group. Half of the fans gladly welcome the new group while the other half refuse to accept it or outright post hate comments just because [[FelonyMisdemeanor they aren't µ's.]] It became even more pronounced with the announcement that ''Sunshine!'' would receive an anime; many fans are excited for more idols, but others are calling SeasonalRot and a blatant attempt by Creator/{{Sunrise}} to milk the CashCowFranchise for all that it's worth, especially since it was hardly a year since ''[[TheMovie Love Live! The School Idol Movie]]'' was released. A lot of fans wish there would be a longer time between installments so to get to know
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