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.
zar
Most of my "A" list has aready been cited here, but three guys who've had my attention of late because they're on records that have recently been in heavy rotation in my home/car and haven't yet been mentioned:

(Two are at the "edges" of rock, but I think they qualify.)

Winston Grennan of Kid Creole. He is often credited (along with Carlton Barrett) for developing the one drop rythm that - essentially - defines reggae. His playing is great, but it's sometimes lost in the mix because the band also features a percussionist and a vibrophonist making it a bit hard to quickly identify who is contributing what from that fantastic rythm section.

Taku Hirano of Fleetwood Mac/Lindsey Buckingham. He's the guy pounding that Japanese War Drum during Tusk. He couples interesting ideas, power and a machine-like precision that brings Bruford to mind. Again, he sometimes gets (literally) lost behind Mick Fleetwood (has he been mentioned yet?) because his kit is set up off-stage at Mac concerts.

Jean Yves Tola of 16 Horsepower. Just an eccentric player and his drumming really defines the band's sound.

Marty
I'm astounded every time I see a live rock or jazz show these days. Exceptional drummers are everywhere. It's a real treat for an ex-wanna-be drummer.

For an example of truly horrible, non-swinging, non-grooving drumming from one of my childhood drumming idols, listen to Carl Palmer on Asia's hit, "Heat of the Moment" especially in the last minute of the song. Oh boy, is he bad.
Polyrhythmic demonstration by the Hulk!

Be wary it starts slow (demonstrating great groove and feel) and builds. After 6 minutes of drum solo, he jumps up, bows, wipes off the sweat, and he immediately launches into a cool groove. I have seen this solo personally five feet from Dennis.