I think out of all the names that have been bandied about, the only feel best about is Anderson Cooper. He\'s got a dry wit and a nice side of not-cloying charm. He\'s got good enunciation and I think the general consensus is that he\'s quite intelligent. He obviously has enough gravitas to fill Trebek\'s shoes.
Matt Lauer lacks enough solemnity (eh, there\'s a better word there for that) in his overall demeanor, and I don\'t think that Jeff Probst can be taken seriously enough in the public\'s eye (45 seasons of mozzi bites in the wilderness will do that to a person). Pat Kiernan is a good candidate, but I don\'t think he has enough national presence.
That, and I have a giant mancrush on Anderson Cooper and reject the notion that anyone wouldn\'t.