Conan averaged almost 3 million viewers his first week — can he sustain those numbers or will the late-night wars be back on in full force? Are you watching Conan O'Brien? Or do you still prefer Jay Leno, The Tonight Show host who knocked him out of the NBC peacock's nest? Is the humor of David Letterman on CBS more to your liking, or the freshness of Jimmy Kimmel? Who is the best late-night host?