problem with Breaking Bad is that you simply don't like anoyone, at all, in the entire series.
it's one thing to give you the anti-hero that you pull for, or even do something crazy--like Breaking Bad--and give you a completely unlikeable antihero like WW that, in the end, you realize you don't care if they live or die at any given moment...but to create an entire ensemble of people you would just rather see dead....that is a major fault imo.
the characters are all very well developed, but generally unlikeable across the board.
....maybe I'm laying it on too strong. I can see an argument for Hank or even Gus's Lieutenant (probably my most liked after 4 seasons--still need to pick up with season 5a); but overall, you are forced to hate the protagonists, dislike the regular good guys that are allied against your protagonist, or even hate the bad guys that are, by virtue, trying to kill your hated protagonists.
it's a tough cookie. I give them props for making an excellent program--it is all written extremely well, shot brilliantly, and paced more or less perfectly, but there is that central emotional detachment that leaves me uninvolved in nearly all episodes as soon as they end.