Okay, let's start off with some of the ones I don't hate, but not particularly fond of either:
The Fate series - simply because there's so much of it, I can't even fathom starting with it and going through all the games, visual novels and anime. I feel like it'd take months to catch up - and even if I manage to do it I think I'd still have problems keeping up with what's going on just because of the absolutely huge cast.
Darling in the Franxx - I've avoided mecha anime for as long as I've been watching anime in general, with a few exceptions (Gurren Lagann, Eva and Code Geass), and the anime's premise looks . . . dumb. Main girl's hot as hell, though.
SAO - Was a fan even if the first season's second half was pretty "meh", but then GGO came in and fucked everything up while the fanbase got even more obnoxious.
Every "sister" anime that involves romance, especially Oreimo - because Oreimo arguably started this trend that got kinda annoying.
Fairy Tail - was SO promising in the first arcs, but then the more I watched it and read the manga, the staler it became. It relied too much on a fixed structure/formula of storytelling, and I'm usually more forgiving of that when it comes to shounen. Still adore it sometimes for nostalgic reasons.
And for the ones I do hate and make me go "what the f*ck and who the flying f*ck approved this bullsh*t?":
Hand Shakers - WORST CG IN ANIME - IMO, EVEN WORSE THAN NEW BERSERK, WHICH SAYS A LOT. YOU'LL WANNA POKE YOUR EYES OUT AFTER WATCHING JUST THE FIRST EP.
Mirai Nikki - Passes itself off as "psychological and horrifying", but the only thing horrifying about it is how it ruined the "battle royale" genre and the only thing psychological about it is when it mindf*cks you but not in the good way. Also, SO. MUCH. EDGE.
P.S.: I have a soft spot for Bleach - I can't hate it, no matter what everybody else says and whatever f*ckery it presented near and up 'til the end. I just can't, even though I know I should. It's aesthetics and a lot of the characters make me love it despite its flaws, even if there's a ton of them.