If you all have not seen jeanne robertson she is a real treat... dozens of videos on Youtube to keep you entertained for hours. Warning... women with weak bladders have been known to spontaneously erupt while laughing so hard. Anecdotally, yes, but also true.
Ron White absolutely kills me. Now Sam Kinison on the other hand, make me roll on the floor. But, in retrospect, I'm somewhat ashamed about the things I'm laughing at. (The shame doesn't last long though.) So there is that.