Hm I have to say that I dislike season 6 so far, I like last episode's commonly "hated" end though. It's not that Dexter has become a bad show, I'm still eager to watch a new episode, but it's not as good as it was or could be. I don't know if it's Michael Hall's increased influence on the show's production (he's executive producer, I know) or simply bad writing, but there are so many uninteresting and inappropriate (and sometimes stupid) (sub)plots that it starts to annoy me.
I hate those people that say things used to be better, but IMO it's the same with Breaking Bad, season 4 was annoying, boring and simply bad compared to previous seasons.
Moreover the overall theme of this season of Dexter, belief and religion, is absolutely not my thing.

What do you think, what's your favourite season?