I'm probably going to get "smacked" now ... :rocker: lol, but here goes ...
I'm not a Manning fan, however, in the comparison of the above mentioned, I would say Manning above Brady above Rodgers ...;
I've always thought Brady "owes" alot of his succes to Belichick, mostly evident by the season Brady got injured, Cassel was still able to lead the Patriots to an 11-5 record (but look at Cassel now ... ) I'm not saying Brady isn't a great QB, because he is, just that without Belichick, he probably wouldn't be in consideration for GoaT ...
Rodgers; (being a Packer fan I may be considered biased ...) But Rodgers isn't anywhere near the level of Brady, let alone Manning (yet). IF Rodgers can continue his performance on a level ón paar with the 2011 season, for several more years, then he might be considered, but so far Rodgers has had the benefit of having (probably) the most talented and deepest (talentwise) receiver core, up till now in the NFL ... Even Flynn was able to break a single game record of 5-6 Tds in a game ...
Rodgers is an extremely gifted QB, and We have been very lucky, in having QBs in succession with such talents, but lets wait to compare Rodgers to Brady and Manning just yet, because I doubt Rodgers would have had the same success elsewhere, which I also believe about Brady ..., but unlike Brady, "Mc'Lardy" isn't ón BBs level, however, the Packers receivers and TEs make Rodgers look better than he is ...
Manning has been able to lead his teams in both Indy and now also in Denver, despite not having as much succes in the post season, I would still give Manning the edge above Brady, mostly because Manning in spite of having different coaches, was still able to lead his teams ...
Just a few thoughts from Denmark ... ;-)