No I haven't seen Bleach, but it's gotten my attention since I read that Tite Kubo was inspired by Saint Seiya, one of my favorite anime. So I may watch it someday when I have the time.
EDIT: Ninja'd by Ash493, but to answer his question: YES! Death Note is one of my favorite anime of all time!
Speaking of favorite anime, anyone seen Saint Seiya? Old school, but pretty good.