Lisa Lampanelli: Her entire routine is "I love to fuck black guys!" Woo hoo.

Dennis Miller: picked up one of his audiobooks one time. Lamest attempt at comedy ever.

Bill Maher: I liked Religulous, and I like his show Real Time, but his most recent stand-up special was less comedy and more crazy-guy-yelling-on-the-street-corner. Pass.

Jeff Dunham: Watching him, you can almost forget that the puppets aren't actually talking. When you realize this, it dawns on you that man, this guy is a huge jerk-off.

Larry the Cable Guy - As terrible as his jokes are, I have to commend him for finding a persona that would make him outrageous amounts of money (he's not actually a redneck, if you weren't aware: Proof