I love adjusted stats, which I follow closely for different sports, and the quarterback who tends to get most ignored in the GOAT debates is Steve Young. He has the best peak adjusted stats of any quarterback in an otherwise injury-marred career.
Compare his AV (approximate value) and Rate+ to any quarterback in league history and he destroys:
Steve Young Stats | Pro-Football-Reference.com
Better than Manning too. Just one ring though.
Save for the amazing 2007, Brady is more of a compiler. But as an overall package he is probably the best quarterback.
Outside of Bruins fans and Don Cherry, Bobby Orr gets ignored in the GOAT debates as well. Orr played 43.5% as many games as Gretzky. After becoming the starter of the 49ers, Young started 43.1% as many games as Brady has, and counting (down).
As for compiling, Brady has three MVPs to Manning’s five. The difference is Brady is typically in the top 3 or at least top 5 (and could’ve won it in 2016 and maybe ”even” 2015 if he was judged as Manning was in 2003, 2008 and 2009). If consistently being in the top 5 of NFL players and usually top 3 is compiling, I’ll take that.
What also gets ignored is that like Aaron Rodgers he doesn’t compile stats playing in domes and warm weather 80% of the time like Manning and Brees (or even Young), with the added bonus of Manning playing in the actually third worst division in the league (behind NFC West and North) for the majority of his career, while Brees has played consistently bad pass defences in his division, though that could be explained by domes propping up passing stats for opposing QB’s as well as their own.
And as for the older generations of guys, even if those aspects concern the GM more than it does the QB, being able to win consistently with free agency, salary caps, consistently low draft picks (and sometimes getting docked draft picks for what other players and coaches are on record as saying is ”nothing”) and tougher schedules than any other team still falls a lot on the QB. As BB said, it’s all about the players performing at the end of the day.