The character who has intrigued me the most throughout the sixth season is Desmond. He was "enlightened" initially by Charlie, who convinced him that there was some perfect form of love calling out to him. Then, after Desmond was convinced, it was revealed that Charlie actually had to be convinced all over again. I'm still trying to understand why exactly Desmond was the enlightenment figure (other than the obvious philosophical influence on his character); but then again, that's part of the fun of the show.
So 24 is sadly over, I think it finished great, because it basically sets it up for the film due out next year (rumors on the date but it is confirmed for a movie).
Sons Of Anarchy
Speaking of Breaking Bad, I just finished watching the third season and it was utterly brilliant. Probably the best season yet and simply some of the best television I've ever seen.
The first few episodes of season one are pretty weak, but it dramatically improves towards the end and the second season is far better overall. I recommend sticking with it.