Most Productive Regular Season players according to their formula. Does not take into account post-season greatness.

True, like I said, it is just one way of looking at things. From a "production standpoint, it is hard to argue with Favre....most attempts/completions/TDs/yards etc." If he had gotten one more title he would be in the discussion for best ever.

Though he may have more chances can we not say the same about Peyton Manning being considered as the greatest ever?

Ask this question: Who would you rather have QBing your team. One time winners Peyton or Favre, or Terry Bradshaw/Joe Montana/Tom Brady et al.

Groza probably got a lot of those points for his work as all-pro tackle, not just pure kicker.

I tried to figure that out, but when looking at his "sheet" I couldn't tell how they combined his records. They didn't differentiate:

http://www.pro-football-reference.com/players/G/GrozLo20.htm

Zombo

According to one source, the best player....or at least that player with the most productive overall career, at each position is as follows:

Quarterback: Brett Favre

Running back: Jim Brown

Wide Receiver: Jerry Rice

Tight End: Tony Gonzales

Offensive Tackle: Anthony Munoz

Offensive Guard: Bruce Mathews

Center: Jim Ringo

Defensive End: Bruce Smith

Defensive Tackle: Reggie White

Outside Linebacker: Derrick Brooks

Inside Linebacker: Ray Lewis

Cornerback: Rod Woodson

Safety: Paul Krause

Kicker: Lou Groza