Yeah I've been following it as well.
Pitt is one of my all time favorites and some of his films really got me into being a movie buff.
If I had to rank his roles I'd go
1. Fight Club (no one else could of played Tyler Durden...no one)
2. Seven (he mastered the cocky rookie detective to the tee)
3. Assassination of Jesse James (intimidating & cold blooded)
4. Twelve Monkeys
6. Inglorious Bastards (I wish his part was bigger though)
7. Kalifornia (played a great psychopath)