I’ve never liked Leno. He’s always seemed to have a hateful, bitter undertone that he’s holding back. His “comedy” isn’t funny, most of the time. When he does manage a funny bit, it’s always derivative – usually a blatant rip-off of something Letterman did better when he was at NBC.
Conan is funny. He also should be given more support at the 11:35 spot – say, something at 10:00 that doesn’t suck and is a brand of “humor” that wouldn’t carry its fans over to watch Conan.