Joe Namath, when he was healthy, which was rare, was one of the greatest NFL quarterbacks. Take away the gimpy knees and no telling how many records he could have had.
http://www.profootballhof.com/hof/member.aspx?PLAYER_ID=161
I agree that he was overrated, in the grand sceme of things.
I was a Colt fan. I hated his guts when I was a kid. I was glad that Morrall & Unitas both had more success over the rest of their careers.
But, no one, except Marino and maybe some freak from back in the '50s we never saw, had a gun like Joe. And he was no dummy, either.
And, he's not a bad guy after all.