Are we discussing the consensus of a bunch of fans? Or players themselves? Amongst players, former and current, including many Hall of Famers, there is an overwhelming consensus that Brady is the greatest quarterback, if not the greatest football player, of all-time. That has certainly not been a fickle statement with recency bias, as many of them had held onto Montana as the GOAT since 1989.
Amongst fans? Consensus is also Brady, but you also get the most adament haters out there, and they are the loudest. Almost every Broncos fan thinks that Elway is #1. Most Dolphins fans have Marino in the top 3, if not 1st. There's a lot less objectivity when it comes to fans.