The best football players are the ones who have the most impact on a game. They can be on offense or defense. On offense it's either the QB or the RB. On defense it's usually a DE/DT or a LB. I would choose Peyton Manning or Tom Brady, two of the best QB's in the game right now.
Who is the best football player? Now, that's a question that could evoke some pretty strong emotions. As a loyal fan of the New England Patriots, I believe Tom Brady is the best football player. Others may not feel the same way.