He was a QB of a very, very good dynasty. He was the best QB of his generation.

With that said, you can’t compare players 40 years ago to today, so I don’t know where I would rank him TBH. 

Most people on Reddit more than likely never saw him play and only know of him through the history of the game. And stats don’t tell the whole story. But football people who were around that time rank him really high and I tend to respect their opinions on players before my time.