Well, if you think that Montana, Brady, and Jordan are overrated since they played on great all-time teams, then we will, indeed, have to agree to disagree.
And of course, winning a Superbowl is an amazing achievement. But on the whole, Manning's post-season record is underwhelming considering his reputation and skills in the regular season.
But fine, Brady was underrated. Same difference from where I sit. I'm no Patriots fan or anything. Hell, I don't even really like Brady with his long hair, supermodel girlfriend, and GQ looks. But if there's any current NFL player that deserves accolades, I say it's Brady.