By the win/loss/team achievement model, Griese's team was better than Montana's, and I suspect that if Rice, Taylor and Craig had left for the World Football League, Montana's legacy would.have been quite a bit more modest. In fact, even after the NFL started to figure out how to play the WCO San Francisco had great success with the ex-Tampa Bay QB Steve Young. Still, neither San Francisco QB could manage an undefeated season, so I guess Montana/Young isn't as good as Griese/Morall. Unless I missed.something, WINNING All of the games including the Super Bowl (sorry Brady, that's gotta hurt) is still the best.
I don't think we are really disagreeing honestly, it's all about the team and winning. But IMHO we can judge a single player in a team setting by more than simply the team performance. But, it's all good.