Late night talk host.- Who's the best?

[R*R]

Well the big 4 to me are Leno, Letterman, O'Brien, and Kimmel. Maybe there are some others that people like in North America or elsewhere. To me Conan is the best.
He interacts best with the audiance and is often hilarious
in the guest interviews. He is going to take over from Leno
but I wish he could stay in his current time slot. He is going to have to water-it-down when he takes on The Tonight Show.
I do enjoy headlines and jaywalking on Leno but overall Conan is the best in my books.
Anyone have a preference as to their favorite host or are there any funny and/or interesting late night talk show stories?