Pinkman sucks. He's whiny, annoying, pathetic (though he gets much more interesting/complex in seasons 3 and 4). Aaron Paul's acting was awful in seasons 1 and 2, though to his credit he got a lot better later- not award nominee worthy IMO, but good enough that his nominations weren't a complete sham.
I like Breaking Bad, but I hate how Vince Gilligan domineers his characters to take unfathomable courses of action only because they need to for him to advance the plot in a certain way. I don't care much for that at all. Pinkman and Skylar seem to be his two favorite tools for that end, which is part of why I dislike them as much as I do.
I think most of my antipathy is probably just because of Aaron Paul though. I mean, if they got Pehawk to play the part, Pinkman would be dynamite I'm sure. But not everyone can be Pehawk.
Fun story- Gilligan initially planned to kill Pinkman off at the end of season 2, but decided against it and did a re-write. In fairness, Pinkman's best moments came in seasons 3 and 4, so I'm glad he got to stick around.
It's probably the most uneven show I've watched. Occasionally brilliant, but often frustrating. It's worth the lumps, but there are rough patches. The supporting characters are what make it worth it. Saul being another one. I completely forgot about "Better call" Saul. That character was a stroke of genius and Bob Odenkirk nails it.