Love Brady but have to chime in about Montana.
Joe Montana won a few Superbowls first before Jerry Rice and Roger Craig were ever drafted. He won a few championships with no name offensive players, and he also won multiple championships by winning playoff games in which they had to have a TD, and Montana was clutch in getting those game winning TD's (not field goals). So, let's not mischaracterize Montana, I wouldn't be surprised if 20 years from now people were saying Brady was good because he had Randy Moss and Gronk and forget about those first few Superbowls.
Also, Joe Montana was not only 4-0 in Superbowls with zero picks, but he still holds the playoff record for most passing TD's. This is remarkable, given that in the 1980's maybe 1 QB in the entire league would throw over 4000 yards or 25 TD's in any season, whereas in 2012 there were a dozen QB's who threw over 4000 yards and many over 30 TD's. All passing stats after 2004 are inflated due to flag football rules. Montana's playoff QB rating is also higher than Brady's, again even more remarkable having done it in the 1980's before flag football rules.