I hate Negan. I don't know about his comic book character, but his TV character comes off as such a...well...comic book character. It feels like the writers are trying so hard to make him "the ultimate villain", the Darth Vader of television, and instead he comes off as cartoonish, like a villainous wannabe version of The Fonz.
They are trying to make him both likeable and hatebable, cowardly and tough, selfish and utilitarian. He supposedly has a legitimate belief that he is saving the world, yet he acts like a self centered dictator. I can't help but compare him to two far better fictional villains: Napoleon in Animal Farm, and Marlo Stanfield from The Wire. Both of them are, like Negan, totalitarian dictators, but it is clear that they are selfish and use power purely to serve themselves with no regards for their "constituents", as pretty much all real life totalitarian dictators do. On the utilitarian side of the spectrum, I can compare him to Sebastian Monroe from Revolution, an inferior show, but a superior villain IMO. Like Negan, Monroe is a post apocalyptic totalitarian warlord who extorts villages, but unlike Negan, Monroe doesn't act like an immature sadistic manchild, instead acting as a ruthless and remorseless disciplined and draconian commander, and it is believable that he wants to rebuild the world under his iron fist. Negan is neither selfishly ruthless like Marlo, or a disciplined utilitarian like Monroe.
The Governor was a FAR better villain. He was a believable dictator, a selfish man who cared only for himself and lied to his people about his true nature to gain their loyalty. The Claimers were better as well. They were sadists like Negan, but at least they were honest about it. Negan just seems like a self deluded idiot in charge of an...infinite horde(?) of desperate idiots, and the fact that Rick has yet to call Negan out on this self delusion makes Rick seem stupid as well.