That list is like a bad joke. Louis ck should be allot higher, he is probably the best comedian in the world at the moment. I know this is meant to be the all time list, I am sure by the end of his career he will be near the top, if not the top. What is David Letterman even doing in the top hundred, he is with out doubt the unfunniest person on TV. I am guessing the person who made the list is a comedian hoping for a spot on Letterman's show.