These are what we call the 'YMMV items.' Things that some people find in this work. We call them 'your mileage might vary' because not everyone sees these things in the same way. This starts discussions in the trope lists, a thing we don't want. Please use the discussion page if you'd like to discuss any of these items.
Also Kaido, Good Is Not Nice showing that Moria's not ready by killing his crew, but spared him of mercy, Jerk Ass who killed his crew for no reason or a monster who drove Moria insane through killing his crew in the implied horrific way possible.
If anything this is a case of Premature Character Interpretation considering that Kaidou has yet to make even one appearance in the manga.
Bellamy The Hyena is perhaps the most infamous example in the series, being defeated by a single, non-stretching punch by Luffy.
Hody Jones is another infamous example. Even while overdosed with steroids that multiplied his strength by 10 times, Luffy never had any real problem against him. The anime tries to mitigate this by having Hody further his steroid overdose to actually extend the fight further against Luffy...and let's just say that some of the fan-base wasn't as appreciative of this.
Sugar of the Donquixote Pirates, during the S.O.P operation of the Dressrosa arc. She was defeated by an unintentional Jump Scare from Usopp. A defeat that symbolized a turning point for the entire arc.
Averted later though after she wakes up and Usopp epically defeats her again in a very nail-biting situation.
The crew-separation saga which went on for over a hundred chapters before finally deciding to continue the journey with the 2-year Time Skip. While the arcs that took place here weren't anything bad persay, others were just tired of all the side-journeying and wanted to see the crew together again.
Skypiea and Fishman Island usually get called out for being these due to their feeling of disconnect compared to the rest of the established universe, and for their StoryArcs being particularly long. Skypiea's worst offender was perhaps the overly long Noland flashback while with Fishman Island, it was because its enemy, the New Fishman Pirates, were hard to consider as a true threat to a Straw-hat crew coming off 2 years of training.
Dressrosa is starting to head this way after the fanbase realized that what looked to be the finale for the arc ended up getting vastly extended after Doflamingo activates Birdcage; setting up yet another massive hurdle just for Luffy and company to reach Doflamingo and his crew.
Archive Panic: As of April 2012, the manga is at 660 chapters and the crew has barely landed on the first island on the second half of the Grand Line. Eiichiro Oda is not even close to being done with the series.
Ass Pull: A number of them. The most infamous is the classic "Pell surviving a city-destroying bomb with absolutely no justification." Also a bit egregious considering Luffy's earlier speech to Vivi about how it's naive to think that the major conflict of the arc could be solved without anyone dying.
In the anime fillers, Luffy's defeat of Don Achino was easily this because Doc Achino had the power to generate craptons of heat, enough to take casual lava baths. In the final moments of the fight he tries to ram right into Luffy, who grabs him with his bare hands, shouts a few times, and throws him across the battlefield, ultimately suffering only a few minor burns from the ordeal.
In the 4kids dub, Usopp happened to have the Log Pose Grand Compass they needed, and which they got in the removed Laboon arc, all along. Vivi had a second Eternal Compass, which they got in the removed Little Garden arc, for Alabasta, meaning the issue of deciding whether to trust Robin was pointless.
Though this may just be another case of God Never Said That for this series, Oda has reportedly stated that in his own opinion he has done only one of these: Crocodile being vulnerable to blood.
Blackbeard having the ability to absorb a second Devil Fruit was largely this. There was a bit of foreshadowing, but no real explanation was offered for how it's possible. Even supposing his Devil Fruit's abilities could be construed to give him Devil Fruit extraction (and it'd take some really wild thinking to get that), it's stated that the reason he can survive two abilities is because of him having a special body, not his Devil Fruit.
Also the royal guards from the Alabasta saga; they show up out of nowhere, having apparently drunken "death water" that gives you superstrength for a few minutes before killing you - a plot device, incidentally, that had never been mentioned before and hasn't been mentioned since. They take a few completely ineffective swings at Big Bad Crocodile, promptly keel over dead, and no one mentions them ever again.
The pack of wolves initally annoyed with the Straw Hats camping in Upper Yard decide to have a party with them over the bonfire. Though, at least this one has a Call Back at the end of the arc.
Shiki's dance number in the 10th movie.
Breakout Character: Currently no character, Straw Hat or not, has nearly the popularity Tony Tony Chopper enjoys in Japan. From the sheer amount of merchandise featuring him - shirts, hats, figurines, watches, candy, underwear, his own spin-off Chopperman - and Luffy sometimes, you'd think both are the only pirates in the series.
Broken Base: Viz's translation. Some are annoyed at the translation choices and usual lack of swearing, while others tell them "stop whining, nobody cares; it's the same story, so read it". It gets messy.
The Fishmen Island arc. Was the years of hype worth the wait or not?
4Kids' Theme Tune Rap. Some enjoy it for its catchy tune, even calling it one of the few redeeming qualities of their torrid run with the show, while others, such as MarzGurl, lambast it for being a Piss Take Rap.
The anime's attempt at Adaptation Expansion has been this as of late (combines partially with the Padding issues) as the additions made by the anime either make or break the scenes from the original manga, but the moments it really rubbed people the wrong way was when Fishmen Island came around. For example:
Hody vs Zoro was actually a nicely animated five minute fight in the anime, but in the manga, its only a OHKO on Zoro's part to which detractors will claim that it made Zoro look pathetic for being held up by this enemy no one considers a true threat.
Then there's the end of the arc where it's discovered that the anime attempted to extend the Luffy vs Hody fight. In the manga, Hody just gets one single bite on him, but in the anime, Hody can actually keep up with Luffy after an extra steroid overdose and ends up posing a threat for several minutes. While some thought that this made the fight against Hody feel less anti-climatic as it was in the manga, others said that it, like the Zoro case, made Luffy look weak.
Just the fact that he was usually the most popular non-strawhat makes it that much more shocking when he becomes the first major character (besides the Merry) to die outside of a flashback. In a series when a minor character can be at the center of a explosion with a 5-km diameter AND NOT DIE, that means a lot.
Trafalgar Law zoomed up to the top ten in the latest popularity poll before he even did anything. He was a hot guy with a fuzzy hat and had a high bounty. That was it. He did turn out to be one of the more interesting of the 11 Supernovas, though.
And he just earned some serious points by showing up at Marineford in a submarine to save Luffy and Jimbei.
Not to mention the Punk Hazard arc, where he plays a major role. And his alliance with Luffy.
Urouge of the Eleven Supernovas ranked 24th in the 4th popularity poll, above Crocodile and Whitebeard, despite miniscule screen time and plot relevance.
The series' tendency toward Laughably EvilQuirky Miniboss Squads has let a few of the minor villains gain fanbases. Especially Kaku, who plays Laughably Evil to great effect in his fight with Zoro and placed high in the polls for his efforts.
After the events in Impel Down, Mr. 2 Bon Clay certainly skyrocketed in many fan polls.
Monet from the Punk Hazard arc has also gained quite a fan following.
Bartolomeo from the Dressrosa arc is definitely getting up there in popularity because of his fairly unique personality and hilarious over-the-top worshipping of the Straw Hats.
Fan Disservice: Some think that Kokoro's mermaid form qualifies as this. Sanji seems to think so anyway.
Sanji has to fight while wearing a dress and bloomers. It's hilarious. But the person he was fighting? A complete Gonk in a dress with fake breasts.
We get to see a 12-year-old Boa Hancock in pigtails, wearing Zettai Ryouiki and a midriff-baring outfit. But during that time, she and her sisters were chained up and they are terrified as they're about to be branded as slaves and subjected to years of cruel punishments, humiliations and tortures of the World Nobles.
Robin getting beaten and bloody and literally "biting the curb" as Spandam tries to drag her away strongly resembles a rape.
Faux Symbolism: Blackbeard's last name (Teach) was also the same for the Real Life version. Whitebeard's first name (Edward) was also the Real Life Blackbeard's first name. Thatch was an alias used by the real Blackbeard sometimes. By killing them both and taking Whitebeard's powers, Blackbeard has truly become... Blackbeard.
Foe Yay: Surprising absolutely no one, we have Doflamingo, who jokes about how Crocodile siding with the pirates instead of the World Government is "making me jealous".
Nami and Kalifka were very Foe Yay-ish. At one point, Nami admires how smooth Kalifka's skin must be and how she would want her to be her own Sexy Secretary. Lampshaded when she reminds herself that she isn't a Dirty Old Man.
Eustass Kid and Trafalgar Law, despite being introduced relatively late to One Piece fandom, have quickly become one of the most popular pairings of the Supernovas due in part to their position as reluctant and snarky Strange Bedfellows.
A good argument could be made for Zoro/Tashigi.
"Funny Aneurysm" Moment: Ace's debut scene, sans a flashback a few episodes back, shows him apparently having up and died while eating; it turns out he just fell asleep and Hilarity Ensues... except now he is dead so... yeah.
When you rewatch Ace's Alabasta arc scenes and see him acting fairly cheerfully, he comes off as a Stepford Smiler if you consider his childhood.
Not really, after everything that happened with Luffy, and after joining Whitebeard, he was genuinely happy.
Fridge Horror: It's fantastic that the Rumba Pirates were able to record their final performance for Laboon, but... wouldn't the sounds of the dying crewmembers hitting the deck and Brook's laments at the end have also been captured on the Tone Dial? Not to mention how the music just utterly stops when Brook dies...
Genre Blind: King Neptune and his subordinate convincing themselves that the bomb in the treasure will turn out to be a dud and use it to justify not telling the Strawhats. Even though the actual outcome of that has yet to be confirmed, it's pretty clear that it won't end well.
Genius Bonus: For people who know chemistry, the drug NHC-10, which is highly addictive but sometimes used as medicine by certified doctors. The chemical name for methamphetamine, another highly addictive drug, is C10-H15-N, nearly NHC's reverse.
Growing the Beard: Happens literally in the case of Blackbeard, whose namesake grows thicker and darker with every major appearance.
In the case of the series itself, many fans note that One Piece really started coming into its own during the Arlong Arc, and even after a few hundred chapters, simply hasn't stopped delivering in entertainment.
As for the anime, it really came to be its own series with the greater animation budget, fighting scenes and overall story with the beginning of the Water 7 arc.
Harsher in Hindsight: News of Ace's death came shortly (as in within days) after Funimation released the first dub episodes of the Alabasta arc on their site. Said arc featured him as a Guest Star Party Member for a few episodes. It makes things unsettling.
Double whammy: Episode 437. Luffy's determination to reach Ace is to the point that he gets up even though poisoned, and beats his head against the bars of a cell to break out. Even considering the expression on Luffy's face, watching that scene was hard, when you consider that all his effort and sacrifices will ultimately be in vain.
Also, remember Bon Clay's Heroic Sacrifice and his facing down Magellan while Luffy and Co. got away? Yes? Remember Bon Clay's last words to Luffy? "YOU MAKE SURE YOU SAVE YOUR BROTHER!!!" ...Ouch.
Basically, to everyone who's read through the Marineford Arc, yeah... so how's watching any of the anime episodes holding up for you?
There's a villanous example with Arlong; his rants about Fishman superiority over humans ("Heaven gave us the power to separate us from you! So WE ARE DIFFERENT! Humans are lower than fishman from the day they're born!") takes on a horrifying twist when it's revealed that Fishmen have been savagely persecuted by the World Nobles and he in all likelihood was once a slave. And then think about how the World Nobles see themselves as gods; Arlong's ranting comes off as deeply embittered counterarguments against that kind of thinking instead of standard Fantastic Racism.
Arlong killing Bellemere has another Tear Jerker layer to it. Fisher Tiger gave his crew the command to not harm humans, no matter what. Not only did Arlong rob Nami of her adoptive mother, he also broke his promise to his captain.
The Marineford episodes where Blackbeard gains Whitebeard's quake powers and unleashes them on Marineford, causing Tsunami's to head towards Sabaody was aired shortly before the 9.0 Quake and Tsunami disaster in Japan. OUCH.
Heartwarming In Hindsight: Fisher Tiger and Koala. Even after the ambush from returning Koala to her village by the Marines, he declared on his deathbed that she, not knowing of the hatred between humans and fishmen, represents the hope for a better future. Skip to fifteen years, and she find out that Koala has joined the Revolutionaries, and when she's not starting uprisings against oppressive governments, she's teaching Fishman Karate in Fishman Island. She's also a good friend of Hack, a fishman who's an acquaintance of Jinbe's.
With a very sharp increase ever since Amazon Lily, and especially since the start of the Marineford arc.
Post-timeskip? Off the charts.
Ho Yay: Nothing needs to be said about Zoro and Sanji, which is steps into Foe Yay territory. Also, Zoro's Heroic Sacrifice for Luffy heavily contributes to the fuel.
Chaka and Pell, seeing how they are usually seen side by side.
Chaka: I still... can't accept your death. I can't even shed tears. Why is this, Pell?
Brook and Yorki had an awful lot of smiling and touching going on, especially in the anime. Which just makes that flashback even more depressing when you get to all the inevitable tragedy.
Coby and Helmeppo skirt the edge between very good friends and boyfriends. The filler doesn't really help. Taking Coby's fanboyish adoration of Luffy into account, an argument could also be made for a Helmeppo-Coby-Luffy triangle.
Calgara and Noland from the Skypeia Arc flashbacks. The entire arc hinged around their tragic separation and the suffering both of their descendants endured as a result.
Iconic Outfit: A person wearing blue shorts, a red vest and a hat coincidentally made of Straw? That could only be what Luffy wears all the time. Some of the other characters have them as well.
Idiot Ball: The citizens of Fishman Island grab this so often, it makes you wonder if they're just genuinely stupid.
The Straw Hats arguably had a collective pick up of it as well, on the same arc. In a group with many intelligent people, you'd think they'd warn everyone a famous criminal with a Logia ability is trapped securely inside the barrel. Then again, the fact that the barrel was so tightly secured should have been more than a good reason to not try to open it. It wouldn't be so bad, expect Caribou now knows Shirahoshi is one of the ancient weapons alongside Pluton, Poseidon. A secret that is sure to endanger Fishman Island and Ryuugu Kingdom if exposed. And Caribou is now roaming free and reunited with his crew, with full knowledge of said secret.
Except that we know that Caribou is stranded on an unknown island in the New World, as per the cover series.
Like You Would Really Do It: After the Marineford Arc, I think it's save to say that Oda's absolutely subverted this one as much as it can be subverted.
Although he much more often inverts it; characters that seemed almost certainly doomed in their last appearance (Pell, Bon Clay, Brownbeard) have a tendency to suddenly turn up alive and well for no apparent reason.
Magnificent Bastard: A number of the series' Big Bads, particularly Crocodile and Doflamingo. Pretty telling in Doflamingo's case, considering we still don't know all that much about him.
Memetic Mutation: "Oda never forgets." Made increasingly more obvious the further into the manga one reads.
Of course, this is stupid, as never forgetting has just about nothing to do with it in comparison to the fact that Oda has obviously planned out everything years in advance.
Actually, according to what he has said in interviews he DIDN'T have the entire plot planned out from the start, just the ending and general storyline direction. There's a reason he originally only planned for the series to go for about five years..
X is Sabo.note Sabo was apparently killed off by a cannon on a Celestial Dragon ship. While this happens in a flashback and after the point where "No one dies in One Piece" has been disproven, some suggest he is not actually dead.
Memetic Sex Goddess: Surprisingly, the biggest example from this series is probably bit-part Ms. Exposition character Domino, who for whatever reason has found herself the star of a series of popular hentai doujinshi portraying her as a Hermaphrodite dominatrix.
Narm: Editing in the 4Kids dub removed any drama and tension from any scenes involving guns, one of the biggest examples being very early in the series, when Helmeppo held Coby hostage with...whatever the hell this is.◊
As one poster in the comments section pointed out, the reason why the younger generation reading may seem smaller in the figures is because entire families tend to buy One Piece and read it together.
Consider also the fact that this series has been running for over fifteen years now. If someone has been reading/watching since the very beginning, they'll be adults now. Of course it says something that they'd still be fans as adults.
If this is even half right, One Piece's true periphery demographic appears to be... everyone who doesn't normally read/watch manga/anime (aside from Sazae-san). It's that popular.
Rescued from the Scrappy Heap: Usopp. He quit the Strawhats, came back as Sogeking, left and came back as himself and is now fairly happy about the Sunny. Especially since there's a little boat thing Franky made named the Mini-Merry that we saw at the beginning of Thriller Bark.
Oda has the amazing ability to do this for a lot of characters by adding Hidden Depths to them. A recent example would be Bellamy The Hyena during the Dressrosa arc.
Rewatch Bonus: Lots of it! It's amazing how many little details Oda adds in each chapter.
Hell, it's amusing to reread/rewatch just to look for Panda-Man!
The Scrappy: Absalom, to such a degree that Oda was shocked to receive fanart of him. Also, as mentioned above, Usopp after leaving the crew.
Akainu has probably become the most hated character in the series for not only being completely ruthless, but for also killing Ace, causing serious emotional pain for Luffy. Needless to say, the fans were not pleased with the outcome, especially the female fanbase. Fans eagerly await the day where Luffy will kill his ass for what he did.
As of recent chapters, he is now the head of the Marines, and possible Big Bad for them.
Princess Shirahoshi was simply disliked by many fans, due to her whiny personality that comes out when someone threatens her.
Sanji and Zoro get loads of Ho Yay/Foe Yay scenes and fillers has no problem having them sleeping with their faces an inch apart or having them Almost Kiss twice.
Even in canon. There's Franky/Robin, Usopp/Kaya, Luffy/Nami, Zoro/Nami, Sanji/Nami, Vivi/Kohza and Zoro/Robin… hell, it's apparently possible for everyone in the crew to be shipped with everyone else… except maybe Chopper… and even thatis debatable.
Nami isn't Tsundere towards Usopp, but instead she's been seen to be quite fond of Usopp from times to times. She wept after he left during the Enies Lobby arc and was the most adamant to defend him against Zoro when he came back. She also buried his face in her chest when they meet each other after the Time Skip. Keep in mind she would have never do that for any other male of the crew.
Luffy/Hancock made fun of this and Mary Sue fan characters in general, apparently. It's very easy to ship them together since Hancock is unambiguously madly in love with Luffy, but Luffy, being Luffy, never noticed, or is simply not interested. He even blatantly said "I'm not gonna marry you!" at one point… doesn't stop her trying to get him, though.
There's even Zoro/Perona?! How the hell did that happen?
Zoro was on Kuraigana Island with Perona (and Mihawk) for two years. Technically speaking he's been with those two for a longer period of time than he has been with the Straw Hats.
While we're still on Robin, there was a precious little moment in Chapter 673 when she lets Franky rest his head on her lap, a gesture that's considered even more intimate in Japan.
In the SBS for volume 48, Oda was asked who would be the mom and dad if the Straw Hats were an official family. He answered that Robin and Franky would be the mom and dad to the rest of the Straw Hat crew, with the exception of Grandpa Brook.
There is also some involving Nami/Luffy. For example, whenever Luffy leaves his strawhat behind before fighting an opponent, he always gives it to Nami for safekeeping. Also, there have been times where Nami's been in danger and the person she thinks about the most is Luffy (examples come from Strong World Movie). Justified in how he is the captain, strongest member of the crew, and therefore the most likely person to be able to save her.
Strawman Has a Point: Minor case with Enies Lobby. Nico Robin was given the deal of giving up her freedom, in exchange for the rest of the crew's safety. When said crew come to save her, Spandam states that they will be thrown into Impel Down, regardless of the deal. However, he kept up his part of the deal, but that doesn't give the Strawhat Pirates the right to beat up around five hundred guards (by that point) and just get off with a slap on the wrists. Regardless, Robin and Franky claim its just a minor technicality that he is abusing. Though, to be fair, he likely would've chased the crew later, given half the chance.
Squick: The thought of Ace's mother, Portgas D. Rouge, holding him in her womb for twenty months just to keep the Marines from finding out he is Gold Roger's son.
Dr. Hogback. Pretty much everything he does.
And then there's the fact that Vander Decken hasn't washed his hand in 10 years. Eww!
Whitebeard, a seventy-something giant of a man with earthquake powers, a big-ass Blade on a Stick and a sweet 'stache. Based on a hard-drinking war veteran Oda knew, this guy takes on The Governmentand the Seven Warlords to save his "son". Fans have been speculating for ages on whether or not he'll die like the Real Life person who inspired him. Oops, he did. But in the coolest way possible.
Ace is a far more debatable example, as it could be easily argued that he was put under this trope mostly because he's a great example of an Ensemble Darkhorse. Thing is, he's simply never shown doing anything all that impressive, and in a World of Badass like the One Piece world, nothing even remotely close to qualifying him as being Too Cool to Live.
Well, he did fight a Seven-Warlords Fishman in a multiday battle that ended in a Draw. And when Whitebeard came by looking for the punk trying to take his head, Ace managed to get to his feet and challenge him. Presumably he's gotten stronger since then, being on Whitebeard's ship and all.
They Wasted a Perfectly Good Plot: There are instances of characters being introduced with hints of backstories, intriging designs, and character quirks only to be completely dropped soon after. The most egregious example are the General Zombies of Thriller Bark, who almost literally had a bridge dropped on them.
Subverted in that Oda is very good at adding subtle details that make sense much later in the story.
Unfortunate Implications: One of the few things generally disliked about this manga is the tendency for female villains, and usually only female villains, to suddenly start doing stupid things that end up costing them their fights. Examples include Miss Doublefinger and Kalifa not killing Nami when they had the chance, and Monet's Minor Injury Overreaction against Zoro that allows Tashigi the opportunity to finish her off from behind.
Actually, it was quite easy to tell due to her having huge, black irises with lights like any other female character. It was just that she had messy hair (due to not being able to have a haircut and combing when she was a slave) and wore boys' clothing (probably the only clothes her temporary village could provide her instead of her slave rags), so readers may have thought the eyes existed only to make "him" look cute.
Kureha. Though really in her case it's age confusion.
What an Idiot: "I SHALL BE THE PIRATE KING!!" Oh Hody, you really shouldn't have said that...
The residents of Fishman Island in general seemed like this throughout the arc. Trying to fight/arrest the Strawhats (an extremely strong, dangerous pirate crew) based off suspicion alone was actually the most sensible thing that they did, because at least they had their reasons for that. But it all went downhill from there. There were the citizens trying to arrest Luffy after he saved the princess from Vander Decken. There's Shirahoshi, who decided to keep the identity of her mother's killer a secret simply because she didn't want people to hate him. There were the New Fishman Pirates who constantly underestimated the Strawhats (while getting their asses kicked by them). This would be topped by the generals thinking being crushed by Noah would somehow serve as revenge against the humans. Then the Fishmen were reluctant to donate blood to Luffy, the guy who nearly killed himself to save them, because he was human. And it all ends with Neptune not warning the Strawhats that they just sent one of the Four Emperors a bomb after desperately convincing himself that it was a dud.
Squard, for being convinced that Whitebeard sold them out and stabbed him for it. Although the lie was somewhat convincing and it did hit a sore spot, it didn't change the fact that it was coming from a Marine, and that the entire attack strategy could've been orchestrated to make the lie more believable. Even Squard is deeply angered and depressed over his own stupid actions once he realizes he was lied to.
Even if Usopp was inconsolably angry over the Going Merry being irreparable, Luffy unnecessarily angers him by refusing to admit or let Nami tell about the fact that he was also unwilling to accept this, which would have made him seem more sympathetic. What cements things is when Luffy tells Usopp, in anger, to leave the crew if he can't stand his decision... and Usopp does.
What Do You Mean, It Wasn't Made on Drugs?: The Punk Hazard arc, full stop. Giant skulls? Dragons? Flying bird lady things? Gas mask men who are lamb people underneath? Centaurs? Giant kids in a nursery? Moving, talking blob who is the leader of said lamb people? Giant, frozen corpses? Poison gas on the island? Trafalgar Law making an inexplicable appearance? Franky's beetle-jaw hairstyle?. Didn't they teach Oda in school not to mix LSD with crack? Granted, it will probably make sense later on, but this whole arc is getting to be pretty "out there".
Although, to be fair, the same could be said for the entire series. We've seen Islands in the Sky, a habitat for giant birds with key-shaped beaks, along with bizarre fish such as "Skysharks". We've seen a hypnotist that moonwalks everywhere he goes, and a man who tried to turn the main characters into a giant wax cake. That last one gained powers from a mystical fruit, variants of which have been used by over half of the series' characters. Oh, and our heroes include a rubber man, a skeleton with an afro, a cyborg, and a reindeer doctor. One Piece is screwed up.
The Woobie: Almost everyone (either in flashback, during the present day, or both).
Chopper, Robin, Brook. Also Coby in the beginning.
Usopp in Water 7. First he gets the crap kicked out of him by a gang of characters Zoro defeated single-handedly, losing two-thirds of the Straw Hat crew's fortune. To make matters worse, the crew doesn't even get angry; they just feel sorry for him. Then he tries to get the money back, but he gets flattened again. His ship, a gift from his girlfriend's dead parents, is broken beyond repair and nobody else seems to care (he was absent when Luffy protested the carpenters' assessment, although Luffy doesn't mention this). He challenges Luffy to a duel for the ship and loses, and then Luffy gives him the ship anyway. While spending the last of his money on the repair effort, he gets kidnapped by a vengeful cyborg, told once again that his ship is going to die, kidnapped again, and forced to watch as his beloved ship is callously thrown into the sea. Subsequent jerkassery aside, you can't help but feel for the guy.
And now Ace, who spent his life being told his father was a monster and wondered if he should've been born.
After recent events, Luffy qualifies as well, having fought past his physical limits and sacrificed years of his life, only to see Ace killed in front of him while trying to protect him. His grief and frustration over his weakness is enough to make him temporarily give up on trying to be King of the Pirates.
Garp. Watching the two boys he raised as his own grandsons grow up to be notorious pirates, and then seeing one of them captured and sentenced to death, sparking the biggest war between pirates and marines in recent memory, you know the poor guy's got to be all kinds of torn up.
Especially considering that Garp is a high-ranking Marine and is thus obligated to side against them, or at the very least stay out of the way as his coworkers try to kill his grandsons. That is a seriously unpleasant situation to be in. He thanks Sengoku for holding him down after Ace gets fatally wounded, because otherwise, he would have tried to kill Akainu in a rage.
Really, if a character isn't a bad guy, or if he/she is a bad guy for asolid excuse, about 95% of the time you'll want to just drop everything and give them a big bear hug. A series full of Determinators can do that to you.
Ho Yay: Between most of the male members of his crew, particularly Luffy/Zoro, and Luffy/Sanji. Predictably during the Impel Down arc, there's been Luffy/Mr. 2 as well, as also between the Supernovas Luffy/Kid, and especially Luffy/Law.
Foe Yay: Luffy/Crocodile is probably the most prominent. There's also Luffy/Buggy, and more recently, Luffy/Doflamingo.
Ship Tease: Luffy/Nami, especially in the 10th movie. Then there's Luffy/Robin, in which an entire arc was based on rescuing her.
Fan Disservice: Zoro with his shirt all torn up is pure Fanservice. But Zoro with his shirt torn while soaked in his own blood and so hurt he could barely stand after his confrontation with Kuma wasn't so much.
Seme: His natural role in gay-relationships, but it’s rarely inverted. Depending on the shipper the relationship is quite balanced or then the partner is exaggerately feminine. Especially Luffy’s ukefication in some fanarts must be seen to be believed.
This is the whole reason Franky was created. So Kazuki Yao could voice him. Or, more accurately, the reason he is who he is.
Shipping Goggles: He has his share of shipping, but it’s mostly limited to Robin and sometimes Usopp.
Ship Tease: Franky/Robin shiptease has peaked up in recent anime episodes. The new Opening Narration shows Robin helping Franky with his inventions, when the helper’s role is usually given to the crew’s another inventor, Usopp. Additionally, when Franky and Robin meet after two years, their conversation is filled with ship tease starting with Franky openly and loudly complimenting Robin’s appearance. Then there’s Franky’s reaction (or lack of) to Boa Hancock when the crew sees her. It seems that the creators of the anime have really taken Franky and Robin’s roles as officialTeam Dad and Team Mom seriously.
Mary Sue: Deconstructed, actually. Sure she's sweet, kind, and selfless; the only member of the Royal Family that people liked during the rebellion (partly because she disappeared before things got really bad), showed startling amount of maturity at 10 years old during a world conference, infiltrated an organization threatening her country's stability when she was 14, and is an honorary Straw Hat. However, she was also like any other child, in that she was occasionally mischievous, and it got her into trouble. Her sensitivity and empathy made her fear anyone getting hurt or dying on her behalf, which actually worried Igaram whether she'd be a strong leader when she grew up, and that fear later developed into Chronic Hero Syndrome which would get her into a fight with Luffy when he called her out on it, along with making her Crocodile's personal Chew Toy. Her optimism often masked the anxiety over her country, and a seething hatred for Crocodile. Her experience made her knowledgeable of the Grand Line and the threats facing the Straw Hats, but she'd often neglect to tell them. Her fighting skills were surprisingly good even for her rank, but amongst the Straw Hats, especially the "Monster Trio", they weren't remarkable (she's unable to defeat a single giant banana-gator, but Luffy defeats several even while weakened by ankle-deep water). She did simultaneously go through Character Development and Took a Level in Badass before the crew left her.
Woolseyism: Okama Waynote Translator's Note: "Okama" means "transvestite". was fan-translated into "Crossdresser Kenpo". In the manga translation by Viz, it's rendered as "Oh Come My Way", a knowing wink towards those familiar with the original word. In fact, Mr. 2 and his flunkies actually say "Oh come my way" in an Image Song.
Evil Is Cool: Come on, you have to admit that he is quite stylish. Just look at the picture up there!
Moral Event Horizon: When he kills Nami and Nojiko's Mom right in front of them. And if that wasn't bad enough, how about forcing Nami to make all of those maps for him for pretty much her whole childhood?
Magnificent Bastard: Deduced Iceburg's relationship with Franky and the ownership of the Pluton blueprintson heartbeat speed alone, and single-handedly jeopardized the Straw Hats' entire mission and almost killed them by breaching the walls of Tower of Justice with the air from his kick, allowing water to escape through and drown Luffy's nakama... just to piss him off.
I Knew It: Since the Whitebeard War began, there were numerous fan predictions and fake spoilers of him showing up with the Level Six prisoners. Sure enough, he did, but not when they thought, him stealing Whitebeard's power and with Avaro Pizaro either.
What an Idiot: Has two good opportunies to finish Luffy, but didn't rather just going into Hannibal Lecture mode and leaving him to die. During the final moments of his last battle, he could've stopped Luffy anytime he wanted. But figured the lightning storm would do him in. Apparently no one taught him that rubber doesn't conduct electricity. By the time he realized his mistake he got a Gigant Thor Axe smashed down on him.
To be fair, a few characters forget what the advantages of being a Rubber Man is to Luffy. Even Nami is reminded time to time.
Magnificent Bastard: What he does in chapter 626 qualifies. He takes advantage of the confusion of the burning of the signatures and Queen Otohime being fatally shot so he can get close enough to Princess Shirahoshi to use his Target-Target ability on her. Just so he could later marry her and get a hold of her powers to summon the Sea Kings.
He would be if he arranged it, but he merely saw a good opportunity and took it. Turns out the fire was Hody's doing, so they unintentionally advanced each others' aims.
Squick: Decken hasn't washed his right hand in over ten years. That's just gross.
Pfft, that's nothing when you consider how old Shirahoshi was when he touched her and decided he wanted to marry her. She was six.
Breather Boss; He's possibly stronger than most of the early series villains, but he's nowhere near the foes Luffy faced at Marineford or will face in the New World.
Nightmare Fuel: His transformation (chapters 643-644) gave him costantly open eyes and huge, gaping mouths worthy of a Murloc. His whole attitude and plans for the future contributes to the scary aura.
Tyke Bomb: Orphan and his friends raised almost solely underneath the teachings of Fantastic Racism taken to its most extreme.
Moral Event Horizon: Crosses it in his introductory appearance, by destroying a ship containing Ohara's civilian population on the mere chance an archaeologist might have been on board – and keeps on running with it.
Nightmare Fuel: The way his powers are depicted in the anime is downright terrifying. It doesn't help that the sound effects that come with said power are usually the ones you hear when something rather... unpleasant... happens to a human body in anime.
Breather Boss: Less so than Hody, but he still fares very poorly against Luffy and hammers home another basic truth: having a Logia without Haki or something else to back it up is not going to get you very far in the New World.
Moral Event Horizon: Gassing his own man in an experiment, causing hallucinations, headaches and nausea, then finally incinerating his test subject is bad enough. He then goes further, when it is revealed that he gets LITTLE KIDS hooked on a drug so they won't run away from the facility where he's experimenting on them.
Gets better. You know the children? Turns out that the experiments that he's performing on them will kill them within FIVE YEARS. Yep. What a nice guy.
He plans to take Smoker down with him via his heart. He is a Monster.
Never Live It Down: Not entirely a fault on Caesar's part, but many people refuse to get over the anime's attempt to extend his final confrontation with Luffy, and serves as a perfect example of Adaptation Expansion done wrong, by turning what was a OHKO from Luffy when he used Gum Gum Grizzly Punch on him...into a minute long tug-of-war struggle between Luffy's punch and Caesar's gas powers, and effectively ruined a Crowning Moment Of Awesome for Luffy.
Ensemble Darkhorse: The most recent character poll placed him at 12. To put this in perspective, Whitebeard came in at 69!
Epileptic Trees: There's a theory among certain circles of the fandom that Mihawk and Shanks conspired to stop the Whitebeard War.
Quite a few people believe he has Color of the Supreme King Haki, despite being unable to injure Buggy, which he should have been able to do if he was using a technique that explicitly cancels out Devil Fruit based defenses.
Understandable, as Buggy managed to hide the fact that he is a Devil Fruit user from the Marines when prisoned in Impel Down, so naturally a loner like Mihawk had not such information of him. Besides, we shoud forgive these minor details for the Rule of Cool.
Poison Oak Epileptic Trees: A very popular guess is that he's Luffy's mother. Seriously. This is mainly based on the fact that whatever other "secret" Crocodile has, Ivankov (who can change peoples genders at will) is the one who knows it. Not so much "poisonous" as is it "deadly."
An SBS possible drawing from Oda about what the Warlords, including Crocodile were as children, this◊ disproves the above theory.
Magnificent Bastard: As much of a self-centered asshole as he is, Doflamingo has proven himself to be comparable to Crocodile in terms of the shit he's pulled off.
Base Breaker: While things have settled down a bit due to lack of screentime, she can be a rather controversial character. However, judging by the amount of merchandising for her, as well as frequent playability in the video games, she's certainly a popular character in Japan. Oda hasn't held a popularity poll since 2008 (prior to her introduction), though, so it's not entirely easy to gauge.
Crosses the Line Twice: Kicking a kitten? Cliche but amusing way to establish a villain as a Jerkass. Having said character pull a Heel-Face Turn and subsequently kick a puppy and a baby seal at the same time? Hilarious.
Draco in Leather Pants: Was initially this prior to her Heel-Face Turn, but since then, she's been more or less vindicated for her villainous actions, so her fandom (which is quite loud, vocal, and scary) isn't uncalled for.
Jerkass Woobie: She's cold, bitter and only cares for a handful of people. She's also an escaped slave of the World Government who fears being cast out along with her sisters if anyone learns of this.
Some Anvils Need to Be Dropped: The message that Luffy does not return her feelings (or is even aware of them) is about as subtle as a brick to the head. But then, that's the point. Oda throws a lot of Ship Tease in, before shooting it down, then throws a lot of it back in, just to shoot it down again. Expect that cycle to keep repeating for however long Hancock plays any role in the story. And for it to be hilarious.
Epileptic Trees: Jimbei is one in a long line of characters who've been speculated to be the next new addition to the Straw Hat crew, and he's one of the most recent additions to that list following the Impel Down arc. The information that's been revealed so far about him (including his guilt at Arlong's actions in East Blue, his promise to Ace to protect Luffy in case anything happens to Ace, his discarding of his Warlord title despite said title being part of what protected Fishman Isle from outside attacks, his mutual grief with Luffy over Ace's death, and his promise to wait for Luffy at Fishman Isle shortly before the Time Skip begins) and the fact that Luffy willingly let him out of his cell in Impel Down after only a moment of consideration seems to support it thus far, but only the outcome of the current Fishman Island arc will tell whether he will in fact join them or not.
As of chapter 649, Luffy has officially asked Jimbei to join, but Jimbei declined, stating there is some business he needs to take care of first (we later find out it relates to his crew and Fishman Island's assocation with Big Mom) and then he will join.
Ensemble Darkhorse: Despite being shown a few times so far, he's among the most popular of the Marines. It helps that he's more or less the Garp to Luffy's Roger, and that he's shown many qualities that make him not so different from Luffy himself, including his protectiveness over the subordinates under him and a strong sense of justice. Combined that with the fact that he's a shirtlessBadass, and it's no wonder why many fans banging down Oda's door to bring more of him into the story.
Real Women Never Wear Dresses: Arguably subverted. She may be a tomboy in looks and personality, and cares more about being respected as a fighter, but as far as on-screen wins go, so far she isn't as effective as certain other female characters who embrace their beauty and femininity more than she does… such as Robin and especially Boa Hancock.
This seems to have changed with the timeskip, however. Having ascended to rank of Captain, one of her first post-timeskip actions is to deflect a goddamn cannonball. Also, given that the Marines run on Asskicking Equals Authority, it's highly likely that she's fallen out of that tendency.
Harsher in Hindsight: During his cover story, he hilariously blows his cover by punching the daylights out of a Marine who talked smack about Whitebeard. That quirk gets him again in Marineford, with heartbreaking results; when Akainu mocks Whitebeard as a failure, Ace fights him, and gets killed as a result.
Jerkass Woobie: When he was a kid. Sure, he had a damn good reason for it, but that doesn't excuse the fact that he left a young Luffy to fend for himself in the forest. Even more so since Luffy just wanted to be his friend.
The Woobie: When he eventually finds out that the treasure chests he was guarding were empty.
Mont Blanc Noland
The Woobie: He struggled to return to Jaya/Shandora to fulfill his promise, but by the time he got there, Calgara's tribe had been blasted into Skypeia, and he got executed for "lying" to the extremely greedy and incompetent king.
Tear Jerker: Seeing Hannyabal getting the crap kicked out of him by Luffy, and going through a flashback on how he got so far in his job, but continue to keep fighting, and giving a "World of Cardboard" Speech, before getting downed by Blackbeard in the anime was certainly this, for many. At least it was balanced out by a Crowning Moment of Heartwarming from Magellan.
Complete Monster: Killed prisoners and later killed fellow Impel Down workers for simple fun. It says a lot that Magellanloathes him.
The Woobie: Poor kid just can't catch a break, can't he? He's raised by a Noble family who only sees him as a tool to advance their social status, fears being forced to become part of that corrupt society, and ultimately is killed while trying to escape to freedom.
The Scrappy: She was simply disliked by Many fans, due to her whiny personality, and this also gets on Luffy's nerves (he often calls her "Wimpy" or "Wimpy-hoshi")
The Woobie: As if having a violent Stalker with a Crush who relegated her life to a lonely tower for 10 years wasn't enough, the poor girl had to endure with bearing the secret of the identity of her mother's assassin all that time. All the while struggling to not hate said assassin because of her promise to her mother.
Moral Event Horizon: He blows up Dorry's ale, nearly killing him, and ruins a 100 year battle of honor. And HE JUST LAUGHS ABOUT IT. He's pure evil, no joke.
Another strong contender is trying to kill Mr. 9 and Ms. Monday (they've been shown to have survived and started a family together) for trying to do a Go Through Me on him, while mocking the concept of friendship.