Clayton was a little hacky on racial issues. I get a little sick of "laugh at how poor black people are" jokes. (e.g. black people X-treme sports being driving without a license). That's partly why Chappelle quit: he realized that white people were laughing AT black people, not with them. Clayton's other jokes about how rednecks pronounce things had solid execution. I'm not sure he was better than Ms. Pat though.
Andy Erickson is one of the most cringe-inducing comics I've ever seen. It's already weird that she's acting that way at this age. Can you imagine her having the same act at 40? I can tell she's been rewarded for being cutesy and silly from the day she was born, but seriously, no one buys that she still has the sense of humor of a 7 year old. She needs to figure out another schtick fast.
I was rooting for Ms. Pat, Sheng Wang, or Joe List to win it all so I'm happy Sheng got through. His jokes are really well-crafted, and he's not trying to be a cartoon character with his delivery. Bryan Kellen is pretty much the epitome of that and it was a relief that his silly movements didn't destroy with this audience.