I'm not a person who tends to dislike characters tbh, if I ever do it's because they're poorly written or straight up boring while being overly focused on. And even if I don't agree with the way a character acts, I can still find them interesting and enjoy the story. The way gang in part 5 mercilessly kills every enemy they encounter doesn't sit quite right with me, but they literally belong to a mafia, that's how it is. I still love Narancia, Bruno, Mista and Giorno (cant say much about the remaining two, as they don't get much development). Funny Valentine is a terrible, TERRIBLE man but a good character nonetheless. If I had to say whom do I hate the most, I'd probably say Valentine's wife or the attaboy dude.
The closest I was to straight up disliking characters was in part 4, but it was solely cuz I was disappointed others got more screentime than Okuyasu, who's the literal JoBro of the part. Even that feet harem dude got to shine in one ep but Okuyasu gets sidelined for most of the 2nd half of the anime and doesn't really have an arc of his own aside from the introduction one.
