For me, its Supernatural. Last season was sooooooo good. Death was only on the show for 7 minutes, and he was an unforgettable character. I hope he returns again next season. If you haven't gotten into it, start. Its worth it, especially when the multi-season end of days storyline kicks into gear.
Click on the link, its worth it.
http://www.youtube.com/watch?v=hgHgp...eature=related
Dean - "What about Chicago?"
Death - "I suppose it can stay. I like the pizza."
Caution - Borderline spoilers (but if you haven't been following the series, you won't know the plot points at all).