Ok wait a sec. Here is what I have to say, as a drummer myself
Terry Bozzio = This is the man, this guy can make music out of the drums just by himself. "Imagination has no limits", and Terry B. is a perfect example. take a look at the "microcosmic orchestra" set or something like that (dont remember the name)
Mike Portnoy = Psst this dude can play any kind of music with prog. touches. This guys what is music, man he went to Berkley! besides this guy has a lot of modern drummer awards. Listen to both LTE albums and you´ll see
Jason Rullo = It seems that this guys is getting better and better. Shit Death of Balance is the shit!!. He is the perfect metal drummer.
Mike Terrana = Wow cool metal drummer, listen to Unity (the song) from Rage and you´ll what this guy can do with his set.
Neil Peart = Hey!! you can´t forget Neil. Not a metal drummer, but man this guy has a CLOCK IN HIS HEAD!!! for me is the best time keeper, besides he has some cool progressive touches.
Well this is my opinion, if you agree with me in at least in one thing, well then it´s great!! if you dont agree in at least one thing of what I said then you dont know a shit about drummers!!! hehehehhehe