And Brady's quick throws and timing would be negated by defenses allowed to be physical with his wr's, rbs, te's.
That's precisely what I'm talking about Tom. The physicality of earlier eras and the rule changes would undo QBs like Br*dy, Rivers, Somebody like Flutie, who of course doesn't have the numbers overall but was an amazing QB. Guys who need quick releases from their receivers and / or rely on timing routes would have died playing the Steel Curtain in the 70s.
The Corners would have creamed their receivers and by the time they got back on their routes the defensive line would have been all over the QBs.
As for the list...
Montana ... He was great. A tremendous QB no doubt. Excellent vision and a true "gamer".
Graham... Kent? I keed, I keed...
Unitas... It's hard to quantify the legends. The game was so young and some players were simple "Men among boys". Unitas was special. But how would he stack up today? I don't know.
Elway... I hate Elway. I hate him because he was frickin' amazing.
Favre... The Energizer Bunny of football. Maybe not "outstanding" but man was he dependable and consistent.
Starr... Just before my time. I can't speak to him.
Tarkenton... The advent of the running passer. And he looked good. But again, how would Tarkenton stand up against other eras? What would Lawrence Taylor do to Tarkenton?
I think those 7 are unmovable and undisputed from the all time top ten QB list.
Then.....
P. Manning... Best "cerebral" QB ever to play the game in my opinion. Not a "big game" QB. Really his only downfall. I don't see him as a durable guy, although I know he played forever.
Marino... Best "pure passer" I've ever personally seen. Marino was F'n amazing. Unfortunately he just couldn't quite put it all together. But can you imagine Marino in his prime playing today?
Staubach... Great player, tough, steady, ice cold. Actually reminds me a bit of Ben in some ways. Not as dynamic or talented in my opinion at the end of the day. Just my opinion.
Bradshaw... The epitome of the "Big Game QB" Ben channels that quite often, but he's much more consistent. Bradshaw was a tough SOB too. You had to love him, but ultimately, he aint no Ben.
Brady... Get that weak **** out of here.
Brees... I think of Brees as something of a mix between Peyton and Marino. Smart as hell, and accurate too. If he were 4 inches taller he'd probably be a freaking God. As it is, he's not far off.
Moon... Vastly under-rated. Played in an era when receivers were about half mugged and you had to be tough. This is hard. He isn't Ben, but Warren Moon was great.
Young... I always thought of Young as a brash Irishman too dumb to know he couldn't do that, so he just went out and did it. He always performed beyond my expectations.
Aikman... Efficient, but a product of one of the best offensive lines in the history of the game. Really? Aikman?
Kelly... Now THIS guy. The K-Gun was a frickin' force of nature. 4 straight SB appearances? Again, it's hard to rank him as clearly he's sort of a "system" guy but what a freakin' system.
Fouts... Dan was good, but C'mon. This is an all-time list. Why not dig up Jim Plunkett or Jeff George? Fouts was solid. He played well but one of the best all time? I can't get there.