I really disliked the Robin Tunney character in Prison Break. I'm totally over those Wise and Long-Suffering Brunette types in US dramas: thinking, for example, of Tara in Sons of Anarchy.
I guess in Breaking Bad's final season two things have to happen: first the final Hank vs Walt battle, and second Walt's Ultimate Moral Dilemma. Since they could go in just about any direction unravelling the current setup, and Gus is gone from the picture (which is good - he was getting silly) it should be terrific.