I personally love Hedberg, Jeffress, and Gaffigan, but I recognize they're not going to be on the Rushmore of comedians.
I think Chappelle is 3rd for many under the age of 100 and then there's so much variety after that......
Acknowledging his genius, Robin Williams was just exhausting.
I feel like Eddie Murphy got by on one famous routine and Dangerfield was sort of a 1-trick pony (at least by the late 80s-early 90s).
When comedians are asked about the best, they seem to always mention Bruce and Hicks. I've never seen either.
I'd have Rock as my 4th.