It's really tough to compare Manning and Brady with the other four, since one can expect another 5+ years of play from both players.However, based on each players stats, win/loss record and playoff performances to date, here's how I'd rank the six1. Montana - Highly effecient, 4 Super Bowls wins; didn't have gaudy career stats, but his added a rushing element to a high comp %, excellent TD/Int ratio and the ability to win.2. Favre - Gaudy numbers, 1 Super Bowl win, super-durable and long lasting; Another fairly effecient passer who can/could run, and got himself that ring.3. Elway - Good career numbers, 2 Super Bowl wins; Not overly effecient passer, but longetivity, 2 Super Bowl wins and his ground game but him above the other three.4. Manning - Great numbers, 1 Super Bowl win, super durable and highly effecient. He'll probably be #1 on the list by the time he is done... just hasn't put up the numbers or wins (yet).5. Brady - Fair numbers, 3 Super Bowl wins; his numbers don't compare with any of the other five, but his three Super Bowl rings put him above Marino. With more time (and seasons like this), he could easily climb to the top one or two spots in the list.6. Marino - Gaudy numbers, long lating, 0 rings. Marino played a long time and put up huge numbers. However, his problems are three-fold. 1, he never won a ring; 2, he was not overly effecient (under 60 comp % and lots of ints.); 3, he added absolutely no ground game (87 yards on 301 career carries).... just my opnion.