I would say Joe Montana
Statistically, Brett Farve
Tom Brady easily.
Brett Favre is THE toughest quarterback ever. He is also the BEST quarterback ever.
not the best but he is dam good and he won 3 mvp awards.
John elway the best of all time
Joe Monthanna
I believe that he is the best of all time just based on his stats he's closing in on almost all of the passing records and he's currently the best QB in the NFL and he's 37 and that's pretty old for an NFL player.
jamarcuss russel by far
Archie Manning
Brett Favre
Chuck Long
Roger Staubach