Brian is really smart. Maybe because he is the sports guy he has to play the role kind of clownish. He does not take any prisoners in his interviews. It annoys me when ED goes all schoolmarmish on him.
I love Brian because of his strong patriotism. I think that September 11th really had an affect on him, and I believe that he mentioned once that he has become obsessed with hunting down the terrorists. On the other hand, he doesn't come across as particularly conservative on other matters such as social issues. I feel that FNC is probably filled with very patriotic news anchors who want us to fight the war on Terror and win, but on the other hand, they are just as liberal as most others in their field when it comes to matters of culture and family.
Brian certainly isn't afraid to voice his opinions, and occasionally he puts his foot in his mouth, but I think that's what makes him so interesting and entertaining.