I love the people that discredit Bradshaw as a QB and say he won because of his defense ... that was true early in his career ... but not so much later in his career. Moreover, if you take his 2nd to 4th Super Bowls, Bradshaw's stats were pretty damn good:
Super Bowl IX: 9 of 14 for 96; 5 carries for 33 yards;
Fran Tarkenton: 11 pf 26 for 103, 3 INTs
Super Bowl X: 9 of 19 for 209 and 2 TDs; 4 carries for 16 yards;
Roger Staubach: 15 of 24 for 203, 2 TDs, 3 INTs, 5 carries for 22
Super Bowl XIII: 17 of 30 for 318, 4 TDs, 1 INT (MVP)
Roger Staubach: 17 of 30 for 228, 3 TDs, 1 INT, 4 carries for 37
Super Bowl XIV: 14 of 21 for 309, 2 TDs, 3 INTs (MVP)
Vince Ferragamo: 15 of 22 for 212, 1 INT