Even the fans who don't like it anymore can't agree exactly on "when" it started sucking. Was Season Five the last good season? Seven? Three? Ten? Nobody can agree.
"The Computer Wore Menace Shoes." One half says it's one of the worst episodes because the second half is contrived and out of place and the other half found it hilarious.
"Lisa's Sax". Some call it a cute, heartwarming episode with an awesome ending to boot, while other can't get past Bart's sad subplot (If somebody hates this episode, chances are that will be the reason).
Family Guy is in basically the same position as The Simpsons now.
Sexually ambiguous Stewie vs evil genius Stewie.
Multiple reviewers have complained that the newest seasons have effectively run out of ideas and don't make any effort to change things, while fans have either sympathized their position or sided with Seth MacFarlane and see them as ridiculous.
There is a sharp division on fans about who likes "Quagmire's Dad", "The Juice is Loose", "Road to the Multiverse", "You May Now Kiss the...Uh...Guy Who Recieves" , "Tea Peter", "Go Stewie Go", "Be Careful What You Fish For" and especially "Not All Dogs Go to Heaven".
Futurama is catching up too, but nowhere near as much as The Simpsons.
Though it's fashionable among critics to bash the "new episodes," there's a lot of internal debate as to at what precise season/year/moment the show begins being "new."
The movies especially tend to be love-it or hate-it. Some were just happy to have new Futurama after 5 years. Others felt that it wasn't doing justice to the original run. The debate has (mostly) settled down, with people agreeing that the problem was format, having to create a movie that could be divided into four television episodes.
Similarly, Sponge Bob Square Pants fans are split between those who like every season of the show and those who think the newer seasons are either downright unwatchable or simply not as good as the first three.
In admittance however, the creator doesn't even really want to do the show anymore.
Y'know what? Let's just say that the fans are torn on ALL of the post-movie episodes.
Some fans have noticed an increase in quality since Season 8, and admittedly there have been a few gems in that and Season 9 so far. Still, some fans refuse to acknowledge any improvements.
There's a group that prefers the Un-Cancelled seasons to the original seasons.
Most fans agree that the Transformers franchise has had its ups and downs, but which is which is forever the subject of heated debate. Transformers Animated is simultaneously the best and worst show ever.
Or maybe the franchise has been "Ruined FOREVER!" (the trope naming franchise, actually): "Fans realize something Hasbro does not, that robust 25-year-old billion-dollar franchises, while seemingly healthy, are in actuality as fragile as two bricks tied together with tissue paper." That line pretty much describes the fanbase's position on everything.
There are Transformers fans who think the original was the ONLY series, with all other subsequent series to be inferior knockoffs. These people are known as "Geewunners", and can be identified by their distinctive rallying cry of "TRUKK NOT MUNKY!". On the flipside there are "Reeduners"(a derogatory take on "geewun" based on "G1", a parody of "redone") who hate everything old and groan every time a past series is references.
Arguments over the Bay films, comic vs cartoon, Marvel vs Dreamwave vs IDW...
It's seriously to the point where the only thing fans can agree on is their hatred of Pat Lee, and Squick at Kiss Players. And even then, there's room for other opinions.
Strange as it sounds, nobody really questions whether or not Ben and Gwen are "meant to be together", as it's more of whether or not the Gwen/Kevin relationship was an ass-pulled cover story, or a legitimate attempt to separate characters they forgot were related (ironically, they WEREN'T supposed to be related: it was last-minute to give them a good reason why Gwen should even be on the trip).
Season three is also controversial for the fanbase. If you don't like it and explain why, you're likely be harassed for not being a 'true fan', but if you do like it, you're dismissed as a drooling, zealot fanboy/girl.
Azula's series finale Villainous Breakdown is a subject of much controversy as well. People who think the influence of Azula's father on her actions gives her a valid Freudian Excuse, and that Azula deserves to be forgiven and redeemed, are accused of downplaying her numerous wicked actions over the course of the series, including advocating genocide of the Earth Kingdom in the finale. People who think that Azula has no excuse for her actions, and that not only was her Villainous Breakdown well-deserved, but that she deserves to spend the rest of her life suffering in prison, are accused of overlooking Azula's mental fragility and her father's influence on her actions. The fact that Bryke left Azula's fate ambiguous will likely leave fans warring over this issue for a long time.
Heck, Azula herself is guaranteed to cause arguments in the fandom, between those who think she's way too powerful and those who think she's awesome. But then again, the same could be said for almost all the cast.
How Aang defeats Ozai has created quite the break, itself. There are those who feel Aang's "spiritbending" trick (or as many call it "The Easy Button") was a lame Ass Pull for the sole purpose of not having Aang kill Ozai, rendering three seasons worth of training to master Water, Earth, and Firebending worthless. Others feel that if Aang hadn't mastered the elements and achieved true Avatar status, he never would've been able to access the spiritbending trick at all and saw it as a perfectly acceptable third option. And, of course, there's the overwhelmed minority who's just willing to chalk it up to Rule of Cool and apply the MST3K Mantra to any argument to "how".
And, as with the previous series, there are plenty of shippingwars for the new cast, too, with no less intensity than ATLA's fights.
A comment by Andrea Romano revealing that the entire original cast is dead prompted some sections to deem Korra and her crew Replacement Scrappys.
With the new trailer some fans began debating whether or not the setting is too modern.
There are also some concerns that the setting has become too Western.
One of the biggest points of contention is over Korra's race and ethnicity. One side insists that Korra is of color, and fanworks depicting her with lighter or white skin trivialize the importance of a dark-skinned woman as a main character. The other claims that race is a non-issue with fictional characters, and Korra's skintone should be a matter of fan creators' individual preferences. Rather curious considering that Korra shares an ethnicity and skintone with Katara and Sokka, and the Water Tribe are explicitly based on the Inuit.
Another contention over Korra is the depiction of her build. Much like with the aforementioned skintone issue, it largely breaks into two camps. The first decries any fanwork that depicts Korra with less developed muscle tone than in canon. The second camp claims that Korra's build should be a matter of fan creators' individual preference. Depictions of Korra with greater muscle tone than in canon draw far fewer complaints.
Following the online premiere of the first two episodes, the fanbase fractured again, this time over whether or not Korra is being written as a saviour-esque character in regards to bender privilege.
And then there's the first season finale. It should be mentioned that Korra was supposed to be a twelve-episode Mini Series, which means it was going to be a series finale as well. Given the fanbase's reaction to the previous series's finale, this is fully expected. And it's for similar reasons, even.
While few would dispute that there's at least some grain of truth to first-season Big Bad Amon's complaints of non-bender oppression by benders, fans are sharply divided over the extent to which the Villain Has a Point, from "there are a few bad seeds among benders, but there's no institutionalized oppression" to "the entire government is a vast Fantastic Racist conspiracy, benders are Nazis, and Amon is a freedom fighter!"
Fionna and Cake - best thing that happened to the show, or disgusting pandering to the fanbase?
The darker Myth Arcs are also starting to divide fans. Some find them too dark and out of place, others believe it adds great depth to the series and is part of the fun.
The more extreme side of this is that some people prefer the worldbuilding/backstory episodes to Finn's various and all-too-unsatisfying romance plots, lamenting when an episode focuses on him instead of a secondary character or event
The Danny Phantom fandom has an ongoing war between "true fans" and "anti-fans." The true fans believe in only writing fandom and drawing Fan-Art they believe creator Butch Hartman would approve of, and tend towards being Moral Guardians over any fora they're part of. The anti-fans, on the other hand, believe in fanart as an expression of the fan's thoughts and fantasies, from crack / fandom pairings to drawing porn of the characters (which was probably how the war started anyway).
The Daria fanbase was once split over the issue of Character Development. Some enjoyed watching Daria open up to her peers, make new friends, get a boyfriend, soften her hard line, etc. Others, identified much more closely with Daria as a cynical misanthrope, declared They Changed It, Now It Sucks.
The entire character of Tom Sloane was a massive splitting point for the fandom.
You believe it or not, Cartman has been a victim of this in later years by the same fans. Yes, a good fan base loves Cartman because he is funny as hell and the show would not be the same without him, but some viewers claim that Cartman's Comedic Sociopathy was exaggerated into him becoming an asshole extremely callous and lack of feelings with his friends and even family, and would not be very strange call it a challenge as The Scrappy in his humor becoming in Dude, Not Funny!. Many people hate Cartman by episodes like the end of "Kenny Dies". He is mostly hated by Kyle's fans.
A similar case would be his fight between him and Wendy. Several fans of the series (even fans of Cartman) felt comfortable that Wendy would have won in the fight with him. While there are other fans who hated her even more since she won.
And let's not get started on "You're Getting Old" and "Ass Burgers". Several fans weren't happy with these episodes for being overly dramatic, derailing the characters (especially Stan), and ultimately led to absolutely nothing but an excuse to bash Stan and the audience at the same time.
The existence of anime-style fanart and the Ship-to-Ship Combat in the fandom itself have caused further splitting of hairs.
A lot of characters have been this for the show, as well:
Butters was probably the first example. He went from Ensemble Darkhorse when he was a side character to being hated by a lot of fans due to his becoming one of the main characters, and his perceived Flanderization. Nowadays, he's used less often, but more effectively.
Kyle went from this Jerk with a Heart of Gold with traces of The Woobie to a Designated Monkey and a Foil for Cartman. Some fans do not like his Designated Monkey status, while others are annoyed by his newfound obsession with stopping Cartman. Some also blame him for stealing screentime away from Stan, while some others are happy to see him focused on more often.
Then there's Cartman himself, and whether his antics are still funny or if his actions starting in "Scott Tenorman Must Die" rendered him beyond sympathy and likeability.
Randy Marsh's increased role is either met with amusement or irritation, some going as far as to say that Randy's bone-headed attitude has helped run the show into the ground.
In the case of Ed, Edd n Eddy, it's the episode "If It Smells Like an Ed". There are fans that either hate it for being the cruellest blow to the Edsever, or consider it among their list of favorites for being the first half-hour episode in the series and have elements of Detective Drama.
The later seasons of Ed Edd N Eddy had the kids attending school. Some fans thought it was a refreshing change of pace, others thought it was the series Jumping the Shark.
As for the finale movie, Jonny and his derailment into a joke villain have been met with plenty mixed results.
Teen Titans was notorious for its Robin/Starfire vs. Robin/Raven fandom war. It got so bad that stating your preference was a quick way to makeenemies. There were even little online cultures around the ships—Robin/Starfire fandom tended to consider themselves more well-adjusted than the alternative, whereas Robin/Raven fandom often considered themselves more mature due to the complexnature of their fandom.
Beast Boy and Raven pretty much won this by being lampshaded in the final season and the closing issues of the comic based on the series, as well as becoming canon in the D.C Universe (albeit in a Will They or Won't They? way).
The series finale "Things Change": Brilliant and bittersweet way to end the series where Beast Boy learns a lesson about letting go, or confusing, anti-climactic mess that goes against the mood of the series and leaves way too many unanswered questions?
Beast Boy/Raven or Beast Boy/Terra?
Should Red X's identity have been revealed, or does it not really matter who he is? Another debate that continues to echo long after the show's end.
An overlap with Film and Live-Action TV: There are two factions of Ghostbusters fans: the Ghostheads, who prefer the Columbia Pictures film and its animated series The Real Ghostbusters, and the Go-ers, fans of Filmation's 1975 live-action series The Ghost Busters and 1986 animated series Filmations Ghostbusters. The fandom is mostly divided on which animated series came first, and on which ghost-busting premise (proton packs vs. dematerializers) is better.
Never, ever bring up the Star Wars: The Clone Wars series on a forum. You will immediately be flamed for liking the new series over the old 2D Clone Wars cartoons. There are people who like the old series because it's more "mature", while the new series is a "kid's show". Then there are the people who say that the old Clone Wars series is "childish, plotless, and completely stupid", while the new Clone Wars series is "full of mature themes, real story, and wonderful characters."
Also, never, ever mention Ahsoka Tano. If you do, you will find your thread flooded with people who either think she's a "great character" or is "a pointless, stupid, annoying addition to Star Wars."
Tom and Jerry has had a broken base for decades, and it should come as no surprise seeing that the protagonist and the antagonist in any given short is sometimes left up to the viewer's opinion. Jerry's Hatedom can be quite passionate, however.
Grow Up Timmy Turner: Live action version of The Fairly OddParents. There are people who detest this movie and who view it as violating canon. Also, Shipping Wars play a part in this because according to the live action movie Timmy and Tootie are meant to be. Not to mention that many fans point out that it seemingly violates the canon of "Channel Chasers". On the other hand, there seem to be a number of fans who are looking forward to it.
Scooby-Doo fans now have to make the same hard choice Shaggy faces on the new series: his best friend Scooby or his previous partner in mystery solving now romantic interest Velma.
When Doug left Nickelodeon for ABC, the base was very broken over whether the new series was good or not. That the Disney version changed the voice cast didn't help.
My Little Pony Tales also had fans who disliked the original for being too dark and edgy. And both fans of Tales and G3 questioned if Hasbro is doing the right thing by making FIM Darker and Edgier.
This spreads to fans of the toy series as well. G2 gets the most hate, due to the fact the toys look nothing like any other MLP toy-line before or since. G4 gets a small amount of hate too, both from fans of My Little Pony toys and the typical fan of the source cartoon, due to Show Accuracy/Toy Accuracy. Although a lot of hate of the G4 toys is because Princess Celestia is pink.
There are some fans of the 80's cartoons that actually don't like Friendship is Magic, believe it or not.
Fans and haters of G4 alike seem to be split over the gory fanfiction "Cupcakes". Was it a bit of morbid (but ultimately harmless) fun, or was it the pioneer of the even worse fanon to come? Making the issue all the more hilarious is the fact that Cupcakes's author, Sgt. Sprinkles, has all but disowned the admitted Troll Fic.
The divide over "Cheerilee's Garden" is even wider than the divide over "Cupcakes", many considering it either better than "Cupcakes" as in more entertaining, worse (most often worse as in even more disturbing), or on the same level of not having an impact on them (usually fans who like Grimdark and are seeking for something to get a reaction out of them).
Also, mention Rule 34 on any pony thread and watch the flames spread. Good example: ponychan (the most serious) vs fimchan (the porn) vs Derpibooru (the troll).
There exists a division among the fandom regarding which of the two royal sisters, Princesses Celestia and Luna, is more fit for role of Equestria's leadership. A large factor of this having been that the very intro sequence of the series pilot established that Luna was jealous of Celestia for all the love and respect she received which eventually corrupted her to the point of becoming Nightmare Moon; an event which forced Celestia to banish her to the moon for a thousand years. Many of the show's viewers had decided very early on that Celestia was "a tyrant who is unfit to rule such a peaceful land" regardless of the reasons she had for doing what she did and the overwhelming evidence that Celestia is quite capable and greatly loved by her people. It didn't help during the episode's ending when Nightmare Moon was reverted to Luna and she apologized frantically to Celestia for the entire thousand year debacle; an apology which Celestia graciously accepted before allowing Luna to rule alongside her yet again. This had established her in the eyes of many viewers as a rather sensitive individual, and many sympathizers were outraged. Thus the supporters of Celestia and Luna organized into the "Solar Empire" and "New Lunar Republic" respectively; one side decrying Celestia as a tyrant, while the other asserted she was greatly misunderstood. Thankfully, over time the conflict grew less hostile and the factions now serve more to indicate which princess is a viewer's favorite than which fictional monarch they have devoted their undying loyalty to.
The Friendship Is Magic lot has broken themselves over fan-favorite background pony (and fandom-mascot) Derpy Hooves. In the red corner: People who were tickled pink that Derpy got a speaking role, some of them because this is exactly how they imagined her speaking and others because they were just thrilled she got a speaking role period regardless of how close it was to their headcanon. In the blue corner: People who felt that the particular way that Derpy was voiced is a jab (intentional or not) at people with mental disabilities and are demanding some sort of restitution or at least apology from Hasbro and Studio B for perpetuating hurtful stereotypes.
And in the yellow corner: people who may not have liked Derpy's portrayal in the episode, but are offended at the blue corner's insinuation that the mentally handicapped need to be coddled and cannot be depicted on television for fear of offending them. Unfortunate Implications abound.
The heat started to rise when "The Last Roundup" was removed from iTunes, and all merchandise with "Derpy" in it was renamed or removed from official stores. The issue reached critical mass when the episode returned to iTunes with Derpy's voice changed and her name removed (and an animation tweak that [mostly] un-derped her eyes). The episode's writer acknowledged that it was basically a "no-win situation".
A year after Derpy's abortive appearance in "The Last Roundup", the issue reared its head again due to Derpy's conspicuous absence from Season 3 episodes. Cue the new cracks. In the Purple corner: Fans who want to remind everyone that the show has most likely been censored and perhaps maybe do something about it, including going after anybody from the previous year's Blue corner, whose complaints they believe led to the censorship in the first place. In the Green corner: People who felt that the way bronies responded to the censorship was a massive overreaction that in the end did more harm than good, and would prefer to lay low and be satisfied that Hasbro is still allowing Derpy to appear in third-party merchandise, even if her name is verboten and she's gone from the show. Finally, in the Orange corner: People who are sick to death of everything Derpy - sometimes including the grey Pegasus herself - and wish she and her supporters and detractors would all just go away forever.
Then there's the kerfuffle over "The Mysterious Mare Do Well": over whether the Mane Cast's plan to deflate Rainbow Dash's ego was needlessly cruel and humiliating, or whether it was a much-needed bonk on the head to keep Rainbow Dash's grandstanding from hurting someone.
And then there's a third side that says while Rainbow Dash did need to be taken down a peg or two, the way in which it was done was lacking. Many reviewers have voiced the opinion that if there had been a small scene in which the rest of the Mane Cast expressed their concerns with Dash's growing hubris and she disregarded them prior to their taking up the mantle of Mare Do Well, the Aesop wouldn't be broken. In short, this third side straddles both camps, agreeing that Rainbow Dash needed a lesson in humility, but the lack of context and the botched manner in which it was portrayed made it seem like the rest of the cast's actions were needlessly cruel.
And now there's some debate over the fan-game My Little Pony Fighting Is Magic. The fans are divided between RainbowCrash88's instrumental themes (Applejack's and Twilight's) and Whitetail's electro-style themes (Rarity's and Pinkie's).
The bigger debate with that game regards the beta that leaked onto the internet, which the project head disowned and nearly halted further production over. Is it an unbalanced, unplayable mess (his words), or is it still a decent albeit unpolished game? Will Hasbro send a cease-and-desist order and stop one of the most anticipated MLP fan-works dead in its tracks?
On February 8, 2013, Mane6 posted Hasbro's C&D notice and effectively shut down. The fandom's subsequent divided viewpoints set the various pony forums ablaze.
This has mostly died down, though, since someone released the completed Tribute Edition.
Rainbow Dash possibly being a lesbian was once a major hot spot for many fans. The issue was that, what with the show having multiple "don't judge a book by its cover" Aesops, assuming she was lesbian/fillyfooler just because of her rainbow mane and tomboyish attitude struck many fans as very wrong. This was compounded by presumablyWord of God stating it (she totally didn't; quite theopposite) and by Rainbow Dash being a Launcher of a Thousand Ships. Thankfully, the debate has not only died down, but has been engraved in the fandom's memory as a rather memetic event that is now looked back on quite fondly.
There's also a very divisive scene in "A Canterlot Wedding Part 1": Yes, Twilight turned out to be right about the Cadance we saw and had anyone listened to her, a disaster would have been prevented, but were the rest of the Mane 6 and Celestia really just being Jerkasses who forgot the Aesop of "Lesson Zero," or were their reactions justified by how Twilight had been acting lately, that and just how outlandish her claims were and her complete lack of evidence to back them up?
Almost immediately after an alicorn Princess Twilight was revealed, the fandom seemingly underwent fission overnight, splitting into three groups: those who think this move will ruin the show forever, those who think the show will be about the same one way or another or even improved, and those who don't really care one way or the other and just want to watch their damn horses, thank you very much. Even the revelation that being an alicorn won't change her personality or remove her status as main character of the show failed to placate the raving masses.
This one is a special case on its own, since one of the writers confirmed that the followup will be the Season 4 premiere, with "Magical Mystery Cure" being the first part of a three-episode arc that will be concluded in Season 4's first two episodes. Right now, the Alicorn Twilight "scandal" (if we could even call it that) has reached a point where the fandom is standing on the thread of whether it stands or breaks because of it.
The extended interview of series creator Lauren Faust from John De Lancie's bronies documentary reveals that she had envisioned Twilight to ultimately succeed Celestia; this has resulted in another rift in the fanbase due to a disagreement on whether the show would have jumped the shark regardless of Faust continuing to work on the show or not.
It doesn't help clarify matters when Faust wasn't specific on how the succession would play out, i.e. if Twilight would be required to become an alicorn in the process. To compound matters, she had also originally intended to have only two alicorns in the show but didn't specify if the two alicorns are constantly Celestia and Luna, leading to interpretations where Twilight would either succeed Celestia as a unicorn or become a replacement alicorn for Celestia.
Speaking of Miss Faust, she was asked about this on Twitter and had this to say: "I had plans for Twilight, but what I wanted is irrelevant, & I don't want to undermine what the writers are currently doing." Make of that what you will.
More recently, Faust decided she'd had enough of people twisting her words to back up their arguments, and wrote on her deviantart page "I said in the doc that I planned for Twilight to be Celestia's successor. I did not use the words "alicorn" or "princess."" This mostly put an end to the debate as to whether or not it had been part of Faust's vision, but it also had the side effect of more deeply dividing the fanbase as to whether or not the show was suffering without her involvement, as well as opening up new debate on what the original direction for the story was before she left.
The Equestria Girls movie has been very divisive of the fanbase. When the film, about humanized versions of the Friendship is Magic characters in high school, was announced, most fans were not happy with the idea. The first trailer didn't really help matters. However, the second trailer, and more released details about the film, started to cause a divide. Certain fears about the concept were quelled so many fans were not as pessimistic toward the film as they initially were. After the film was released, it managed to bring a few more fans to its side. But it's still a pretty divisive issue among the fans. It's either a cliche high school drama show, or a cute, funny movie that does justice to its source material.
Also worth mentioning in the fanfiction department is the contained yet heated argument over one particular subset, The Conversion Bureau; in which the general premise is that Equestria has appeared on Earth with a barrier that prevents any non-magical creatures from entering, which necessitated transforming humans into ponies. The original fic was rather notorious as being an instance of wish fulfillment with some glaring (though apparently unintentional) misanthropic themes. While the original fic was not particularly exceptional, many enjoyed its premise and decided to write their own interpretations of the story's setting and lore. However, many who had dismissed the original fic as misanthropic drivel were displeased to see such overwhelming popularity for a work that they believed advocated genocide. Thus began the Anti-Conversion Bureau movement. The two groups shared some rather heated debate for a few months, with many ACB members actively writing their own interpretations, many involving a less than flattering interpretation of Celestia. Eventually, the two groups decided to work to resolve their disagreements and allowed each other in for civil debate. However, this created another schism between the Conversion Bureau's supporters, involving those who thought the fighting had gone on long enough, and those that believed the ACB was a hate group that needed to be expelled from the popular fandom site, FiMFiction. The site's admins were just about to delete both groups before the primary Conversion Bureau group split, and resolved to keep to themselves. Thankfully, after that a lot of the fighting seemed to die down, though it remains a delicate subject for those involved.
In shorthand considering most of the above, the fanbase for FiM is so thoroughly broken that it plays out like a microcosm of the above mentioned divides between generations.
Happening all over again with The Looney Tunes Show, with people debating over the different personalities/roles of the main characters, the neighborhood setting, and the overall sitcom comedy style replacing the slapstick and cartoon gags of the original shorts.
It has been observed that, like its star Michigan J. Frog, One Froggy Evening only "performs" for certain people.
The Ren & Stimpy Show: Everything after John K.'s original run on the series is polarizing. Many fans will say that the Games episodes are an insult to the original show, but many others will say they were good enough in their own right. Same with the Adult Party Cartoon episodes.
Hey Arnold! fans are hotly divided on the infamous cliffhanger ending to the series. Because of a rumored final movie that was to have resolved the show's remaining plotlines, fans are now divided between those who are fighting for the movie's revival and those who are satisfied with how things ended, or feel the movie would not live up to a decade's worth of built-up fan expectations. Mentioning which "side" you are on is a quick way to start a bloody argument.
Was Teenage Mutant Ninja Turtles (1987) the best adaptation of the turtles and a great cartoon, unfaithful but a decent show in its own right, or a horrific injustice to the franchise?
Teenage Mutant Ninja Turtles (2003): Is the fifth season (the "Ninja Tribunal") a solid conclusion to the original plot lines of seasons 1-4, or is it too much of a departure from them? Were all the Ninja Tribunal characters a welcome addition, or did they become too much of a Spotlight-Stealing Squad and take too much time away from the main characters?
Recess fans are torn on the DTV movie, Recess: Taking the Fifth Grade, which was released two years after the show ended. One side loves it, while the other side found it too boring compared to the rest of the series. Both bases do agree, however, that T.J.'s new voice actorwhomped.
Out-of-universe, opinions differ on which of Felix's voice actors was better; Thom Adcox-Hernandez or Charles Adler.
Just try to ask a Total Drama Island fan about how they feel on any of the characters, especially Duncan or Courtney. No seriously, ask. You're either going to be told about how amazingly awesome or annoyingly awful they are. And this goes for ANY character in the show.
Since season 4, the most controversy usually comes regarding Mike and/or Zoey- there are those who consider them as offensive, screenhogs, or terrible role models, whereas others argue that they're funny or very relatable characters. Mike's portrayal of DID is a hot topic- some consider the portrayal of a mental disorder as a joke as inaccurate and offensive, and some don't find it a big deal and enjoy his personalities or find the portrayal accurate after all.
Superjail! encountered a big example of this trope after the second season premiered, as the story format in episodes had changed along with the animation style (Augenblick had been too busy with Ugly Americans, so the job went to Titmouse). Cries of Ruined Forever could be heard, although there were fans that wound up on the defensive of any sort of criticism, claiming that anyone who didn't like any new stories had to be anti-character development and not a "real" fan. Likewise, certain season 2 critics also asserted that those who appreciated anything weren't real fans.
Season 3 was a less extreme example of conflicting fan opinions, although there are those that still miss the Augenblick team and consider the Titmouse episodes to be too cartoony in style.
Some fans of season 2 presented the opinion that season 1 was far too sexual and nonsensical, which others didn't agree with and made another divide.
Personality changes in the characters have divided other fans: Is Warden better when he's more sadistic or more childish? Did Jared's increase in snarkiness ruin his original Butt Monkey personality? Were the Twins ruined and made too weak after having their alien heritage confirmed? You'll see quite the debate on these, among others.
Lord Stingray joining the cast is either seen as the staff bringing in a new character to keep the show fresh, or a completely unnecessary and obnoxious addition.
Alice's backstory confirming her as Transsexual. There are those that believe her story was a foregone conclusion and something that helped make her seem a little more sympathetic, while other fans claim it ruined their guessing games about her genitalia and became enraged that she didn't have an ambiguous gender or that her bulge just wasn't a sight gag.
The very existence of Rule 34 in the fandom can spawn much debate and flames in certain parts of the internet. It's either seen as reasonable to exist considering the adult nature of the show, or as an abomination and proof that fans are ruining the show for their own strange ships and fantasies. This is also coupled with Ship-to-Ship Combat over slash pairings (usually male/male, rarely female/female) vs. the het. Anime-style fanart or works by the East Asian portion of the fanbase are another can of worms.
There are even debates on whether or not the Mistress is more likable as a hippie since her radical personality transformation at the very end of Stingstress. That, and what caused her to become a hippie ( Alice sleeping with her) is known to upset a particular faction of fans because of the assumption that it was the creators thumbing their noses at Warden/Mistress.
Season 4 being six episodes (reasons currently unknown) has caused another split: Fans who still want to watch it, and fans who have decided the show's as good as cancelled/dead and claiming that no one should bother (the anger over Warden/Mistress not being canonized also overlaps with this viewpoint) .
The Galatic KND is either an awesome plot twist or a total Ass Pull.
Also, you may consider Chad stating that he's a Good All Along double agent during OP:TREATY, despite the attacks on the KND he made since of the end of the 2nd season, to be either a last-minute Ass Pull made for arbitrary reasons, or an acceptable twist that you think actually makes sense.
Trying to get people to decide whether Sanjay And Craig is either one of the most decent Nicktoons to come about since Avatar and/or is a love letter to the ninties, or if it's ripping off Regular Show and/or is just as awful as, say, Fanboy and Chum Chum is like trying to fit a camel through the eye of a needle.
If Daffy better as a screwy trickster or a greedy jerk? Fans of the former claim he's funnier, while fans of the latter claim he feels more "human".
Fresh Airedale is a very polarizing short. Some say it was supposed to convey a message of two-faced jerks coming out on top and the underdog being left out in the cold. Others say it was a mean-spirited, unfunny, flat-out horrible cartoon. This was dealt with in the DVD Commentary, in which a negative IMDb review was quoted.