I started watching Leno & Conan about 4 years ago, and I never watched anything else in the way of late night TV. Then, this past summer during the olympics, NBC had all of the time locked up, so I watched Letterman and Kilborn. I was very impressed with Letterman. I thought he was just great. I had always taken Leno's side on the whole Carson replacement thing, but now I can see why Letterman was a strong candidate.
Also, does anyone know what they are doing with Kilborn's timeslot? Is anyone taking over the show? Or have they already?