I knew some wouldn’t get it. We’re talking about what gives you the right to be called the best
What makes you the best is performing in big games.
Unfortunately it's not a fair metric to judge a single player on when football is such a team sport.
That said you can't be the goat without putting the team on your shoulders and willing them to victory, countless times.
Brady has had the best coach to ever grace the field. He's had great defenses, stout olines, and was able to thrive in a perpetually pathetic division. Nonetheless he has proven himself over and over and over again. His genius is between the ears more than anywhere, and his decision to go to Tampa only cements that. He surrounded himself with talent and made an underachieving team champions. It takes a special kind of person to do that.
I believe Dak has some of these intangibles, but I dont believe there will be another Tom Brady in my lifetime, possibly ever again. It's that rare, and it's that special.