Mary Sues, who get everything handed on a platter, do everything wrong but still get rewarded because of bad writing. Characters without any strong beliefs also annoy me, it's fine if their belief is that they don't have strong attachments or whatever, but having a MC with no philosophy, desires, or ideals gets boring.

I fucking cannot stand the prudish "good girl" MCs who constantly go out of their way to comment on other girl's fashion/make-up choices, which are always too showy and so totally unlike the good girl MC with her natural beauty and brown hair and no make up and no cleavage showing ever because that's for SLUTS


Ugh
She's in so many books and I HATE her

I hate the naive happy go lucky kind. The world might be crumbling around them, but they belive that there is light within each and every person, and that every villain can be redeemed, and worst of all nothing bad ever happens to them because of the *power of friendship and love*

Mary Sue-ism. Make him/her hurt, now and then.

I hate an MC that either never loses or never learns from his losses. It's like a short-circuit of a personality. Heck 'one punch man' actually runs this whole thing as a plot device.

A hero that never grows through adversity is nothing but a Rei

i struggle with an mc that even when they are facing a dire situation and all they must do is act. the act is usually very simple and they have been there multiple times at this point. they don't honestly it's like the authors themselves can't grasp the situation either and just let there character stand there and get hit. the first time was honest. the seventh or sometimes the hundredth? i like learning characters. 

I go through phases of what I'm willing to tolerate, as far as certain faults. Lately, I've been particularly peeved at gloomy, broody MCs. The "I'm broken and can't be fixed" kind. Admittedly, I'll still consume whatever they're a part of if there is someone that at least makes fun of them for it ;) 

Nose hair...