Neil Peart - no need to elaborate.
Alex Van Halen - best rock drummer ever....under appreciated due to the guitar wizardry of his bro.
Charlie Watts - just because he's made a lot of $ without changing a beat ever in 50 yrs.
Lars Ulrich - even though I think he's a douche, and a know it all, and an attention *****, I think he's pretty good (at least recorded)...I'm not sure how many tracks are spliced together....Heard him live 3 times...sounded legit, but who knows...
Ginger Baker - saw him at a drum clinic about 20 yrs ago...spaced out, but could keep a good beat...especially in a 3 piece like Cream...
Nicko McBrain - good chops
Mick Fleetwood - any drummer who can sell umpteen millions of records with your name in the band name is pretty worthy...
Dave Grohl - from Nirvana drummer to guitar/singer w/ the Foo Fighters...pretty multidimensional.