One thing I love about this is that while GOAT can be viewed through different lenses (after all, Peyton has 5 MVPs to Brady's 3!; Montana has never lost a SB while Brady has lost 3!, etc.), who the greatest WINNER of all time is an objective reality not up for debate. Brady is without question the NFL's greatest winner - games won, playoff games won, championships won, division titles won, and while it gets a little sketchier in terms of win percentage (Otto Graham has him beat), Brady is still right there with that too and far ahead of anyone in the SB era.
And since, as Lombardi has said, "Winning is the only thing", well, Brady stands alone at the top of the mountain and nobody is even remotely close. Like, not even in the same ballpark. It's like he's on top of Everest and the next guy is back at Camp 2.