I like Dave, and everyone knows how I feel about Jimmy Fallon generally, and Kimmel busts out a good unexpected contextual joke now and then, but to me, Craig Ferguson is probably the funniest on the whole. Sample proof, in first and third (1:17) clips. His body language/shifty-eyes and timing, on top of funny content - he's really starting to pull away from the pack. I remember Joel McHale being a guest and the combination was just out of control - made for each other -