In the last year, I've played:
Deadlands: HoE, Vampire:TM, GURPS (in a Hanger 13 style campaign), Werewolf:TA, Star Wars d6, Call of Cthulu, and Ghostbusters.
Most were short ideas people wanted to play out, with the exception that the Deadlands game was suppossed to last a full year, but a TPK ended it about 2 months into the game (oops).
I think I may have to suffer through a Dr. Who campaign sometime soon. Bleh.