best stand up I've ever seen live was Chapelle. And that is not even close. This was right after he quit his show, and he was being accused of all kinds of crazy things, but he was normal as can be, and I've never laughed so hard in my life. Bill Burr was excellent as well, saw him.
Chapelle would be my #3 after Carlin and Pryor. His show is still the greatest sketch comedy show of all-time in my opinion. He did more fall out of the chair laughing til I'm crying sketches in two seasons than SNL has done in all it's season combined. Quality over quantity, any day of the week.