Conan and Dave by far. The only thing that Leno and Kilborn have going for them is usually that they have better guests. Probably because it's so much easier to get them in LA. If Dave ever has a really boring or uninteresting guest, I may flip to Leno, but that's about it. Conan is the funniest personality by far.
Best: Letterman...he isnt as sharp as he used to be, but he is still the best one I have watched. Tho, I keep hearing good things about Conan, but he comes on so late, I dont ever see him. Worst: Morton Downey Jr. The grandfather of trashy tabloid Jerry Springer-style crap shows.
