It's a toss up between
Mike Portnoy-dream threater. That guy is doing stuff complex with one hand that most drummer couldn't with two. Examples Honor thy father, stream of consciousness.
Danny Carrey-Tool. What the fuck? look at the drum solo in 46 & 2 or the grudge, the end parts are intense.
noteble are:
Dave Lombardo(sp?) Slayer, faith no more, bunch of other bands. God hate us all album or reign in blood, anything by faith no more.
Lars Ulrich-Metallica
Mitch Mitchell- Jimi hendrix.
Skitz- Damaged, this guy scares me.