Greatest? Probably Carlin. I don't think there's anyone who "pushed the envelope" or redefined boundaries the way that he did.

Personal favorite, though?....Bill Hicks.

If you mean stand-up comedian, then I would say Richard Pryor

Abbott and Castello. Their routines are hilarious!!! Who's on first, What's on second, I don't know's on third, Tomorrow's pitching, and Today's home

George Carlin or Daniel Tosh. Carlin makes actual arguments with humor. Tosh sometimes uses the same jokes, but they're hilarious. After all, Tosh likes to make it hail :)

Bill Cosby. Rent Bill Cosby himself and laugh your ass off. He talks about family life like no other.

"And it's because of my father that I thought my name was Jesus Christ. He would say, 'Jesus Christ!' and my brother Russel thought his name was Dammit. 'Dammit, sit down! And Jesus Christ, stop making all that noise!' So one day I'm playing in the rain and he says, 'Dammit, get in here!' and I'm like, 'But Dad, I'm Jesus Christ!'" ;)

And mothers are always sick and tired and tired always followed sick. She would say, 'I'm just sick of this and sick I'm of you! I'm just sick and tired!' Worse beating I ever got, my mom said, 'I am just sick....' and I said '....and tired!' I don't remember anything after that. ;)

Oh man, that brings back memories ;)

Tyler Perry.............................................................................................................................................................................

Bernie Mac was the greatest in my opinion

The minimum length for an argument is 50 characters. The purpose of this restriction is to cut down on the amount of dumb jokes, so we can keep the quality of debate and discourse as high as possible.

To be honest I am going to say Daniel Tosh. Nobody has made me laugh harder than he has. He pushes so many boundaries that everybody hates him while laughing hysterically.

Stephen Colbert.!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!

Wow, hard to say. Bick Hicks is definately up there along with Chris Rock and Richard Pryor. Bill Burr is a lessor known comedian this is also great. Since I can only choose one, I'm going to have to go with Chris Rock.