Tomas Haake, of Meshuggah would be one of my highest ranked. He plays almost nothing but off-time jazz beats, and the timing he's capable of is just crazy. It's hard to even follow their music at first, until you listen to enough of it and figure out the pacing.
Raymond Herrera of Fear Factory and Charlie Benante of Anthrax would also be high on the list.
Threaded Mode