My favs as follows:

Naruto
Death Note
Berserk
Karas
Golden Boy (absolute brilliance!)
Elfen Lied
One Piece
Afro Samurai
Bleach
Furi Curi
Full Metal Panic
Ghost in the Shell (Stand Alone Complex and Movies)
Cowboy Bebop

There's lots more but those are my more notable ones. I'm currently busy on Eureka 7.