Don't agree with a lot of his views, (I sport the evil Conservative moniker) but he always struck me as a standup guy on voicing his positions. One of the things that impressed me with him is that when he is in a contested discussion he seems to listen as well speak. Which typically leads to an actual dialog. (that is more and more rare in our modern day debates.)
Think he will add some nice balance at his new "full time" home with FoxNews. Really don't imagine him "becoming a conservative" when he gets over there.