Count me in on Keith Moon. I don't have a vast exposure to various artists & musicians as many of you here. In my mind, nobody plays like Keith Moon. He was simply magical. Too bad he died at such a sound age.
Best Rock Drummers
I've seen most of them and by far the two that stand out are Neil Peart of Rush and Ceasar Z. of Golden Earring. For non-rock I would say it's a no brainer with Buddy Rich.