The thing that makes Regan great, I think, is that he doesn't mind looking like an idiot. Comedy is very ego driven and most comics want to be seen as supermen. Dane Cook is your current example of rock star comic. Steve Martin was, too. He was silly but not stupid. Regan, however, doesn't mind saying, "I'm a fool."
Yeah, Regan does come off as a "goofball" and he puts together good form.
Comedy may be slightly ego-driven; but, a person can make that argument about authors, conductors, and other kinds of artists; and it can also be made about certain kinds of scientists (publish, publish, publish).
So, in my opinion, comedy is not more ego driven than other similar endeavors. And in individualistic (western and most modern) cultures, all pursuits can be motivated by a person's sense of self; but to be aware of that and to know when it is appropriate to allow the ego to do its work and to know when it is appropriate to go above the ego is critical.
Entire dissolution of the ego usually is a life-long quest; but, certain practices such as meditation and yoga can speed up the process.
Chris Rock.
Funniest man in America.
I agree that African American comedians have the upperhand, compared to white comedians; i.e. black people can joke about just everything the white people can, but then black comedians can get away topics that involve ethnicity (race). Black people have so much more to satirize, parody, or mock than white people do. I mean, Chappelle can get away with a "Black White Supremacist" skit; and most people (with an intelligent sense of humor) find that kind of comedy hilarious. A white person could never pull that off; and no, I do not think that is a double standard.
But to say Chris Rock is the funnies man in the US may be a stretch. I do not think any one person can be called the funniest comedian; I do think that a stand up can be called the greatest; I do believe the greatest stand up was Pryor. All the greats were influenced by Pryor because he was a dang-on top notch story teller.