I don't have one. The easy answer is to name the four guys who were foundational in developing comedy as an art. My picks there would be Bruce (who influenced Carlin and Pryor among others), Carlin, Pryor, and probably Seinfeld or Cosby.
The list of comedians who've reliably made me laugh is huge and cover as disparate territories as Dangerfield, Attell, Madigan, Pinette, and Patrice.
It would probably easier for me to create a Mt Rushmore of the most overrated comedians of the 21st century: Iglesias, Hart, Maniscalco, and Iliza Schlesinger (could've said Schumer, but she's been a joke for awhile now).
And yeah,
@temery - Brad Upton is pretty damned funny. A bunch of those guys who we rarely see on TV because they're off making bank on cruise ships really have mastered delivery, timing, and how to structure a tight set.
I will add that "Elephant In the Room" is the absolute greatest comedy special of all time. And Patrice was dead eight months later.