I'm a Chiefs fan, so I can't root for the Chargers.
To me, rooting for the Pats is like rooting for the Yankees, most people do it just because it's the cool thing to do. I wish nothing but the best for Ellis Hobbs, but I just don't like Brady, Moss, Belichick, and others.
I don't have much of a problem with the Giants, except for Shockey, but he's hurt. So I guess I'd be OK with them.
I've never been much of a Packers fan, but I don't have anything against any of their players, so I guess I'd rather see them win it all.