Nadroj, SpadedOut and Johnriii are the only ones who got it right

.
My list would have to include:
Buddy Rich
Gene Kupra
Virgil Donati
Vinnie Colaiuta
David Jones
Tony Williams
Dave Weckl
Pete Drummond
Thomas Lang
For those who chose Lars Ulrich: Did you know that in a lot of the songs they recorded, he had to record parts, have a break, and then continue recording? He also had a lot of his double bassdrum parts looped - he would play maybe four beats and they would duplicate it!
No offense, but people will never find 'great' drummers in mainstream drummers. All the pioneers and great drummers are the unknowns and the ones who came up years ago. Buddy Rich was a magnificient drummer - he would smoke ANY drummer listed in the charts these days.
Virgil Donati is a much, much, much better drummer than Mike Portnoy. If you like Dream Theatre, then you will probably like Virgil Donati's band Planet X. They're progressive metal/fusion, but don't have a singer - it's just this wonderful instrumental mess of odd time signatures, spacey keyboard pads and insane drumming (one of the songs on the Moonbabies album has most of it in 7/16 time with a rhythm played between the bassdrum with the right foot and the hihat pedal with the left foot - while the right hand plays a straight 8th note feel, and the snaredrum accents the start of every second bar).
Anyway I take an aggressive stance about this topic because not enough people REALLY know who the great drummers are.
By the way, Mike Portnoy is a very good drummer, I do enjoy listening to him play

. But seriously, Virgil Donati is ten times better, I kid you not.