Negan is arguably the very best thing to happen to the comic so I don't know what your talking about.
He's a complex character (not a developed one, though he may if he really wants to help Rick) who affects the characters in interesting but logical ways and he drives and is at the center of many of the most interesting moments in the comics in the past 4 years. If you don't like his dialogue, I understand that, it's not for everyone, but is part of his uniqueness (for as much as people complain about his barrage of swearing, how many other villains do it as rampant as he does?)
Nah, i think you understand me wrong. It´s like in pro wrestling, if you hate a certain charakter its a rather good sign, because the writer succeded then.
I dont know if you understand me now. If he dies, i will cheer, yes...but he brings interesting situations to the table. His language is a bit odd in the comic books, but i can live with that. In the german translation (movie) he is not talking like that. A bit, but very toned down, and thats a good thing because it woudlnt work in the show...