Pro football ticket prices shot up 9.3% this season, to an average $33.39. Worse, the prices have little to do with team quality. So we developed a Gridiron Value Index that relates ticket cost with each team's Vegas Super Bowl odds. The value leader is last season's champ, San Francisco, which boasts Jerry Rice. The worst value is an expansion team, the Carolina Panthers: It's 0-2 and has the fifth-highest ticket price.