A good player needs to be more that a silverback that throws a ball. They need to be someone who's charismatic and a role model, and I'm going to sound almost bigoted here to Vick fans, but I won't accept dogfighting "in your culture" any more than I'm going to tolerate a priest being absolved from molesting children because he's a priest. As a dolphins fan, I have no special feelings one way or another about the Eagles, I'm certain they're a fine team, but Vick is a miserable excuse for a person who needs to be put down.
As for Brady, he lost the limelight when he hurt his leg (? don't know him that well) but shows a ton of potential, and is new to the league, while Vick has had his share of time in the NFL.