Last year the talking heads were suggesting it would be Manning if he could win the Super Bowl. This year the same is being said about Brady.
I've seen all of these guys play, and every other quarterback since 1966. To me, it's easily Joe Montana. That might be because when he got behind and my team was on the other end, I was pretty certain we were screwed. Then there was the Super Bowl where he dismantled the Bengals

Staubach was also great, but Montana could be perfect at times, especially when he needed to be. I also believe that if Montana had not existed, people might consider Steve Young to be the best ever, but being Montana's understudy didn't help. Aaron Rodgers, on the other hand, I think is better than Favre.
Who do you think is the greatest quarterback out of the ones you've seen? I won't ask why it isn't Montana, as some of you have only seen him on highlight films.