You talking about Peyton here not Eli right? For the boomers, I would also bring up Steve Young as a comparable QB to Rodgers. Both replaced legendary stars, put up amazing stats, but only ended with one ring. Young even had better stats than Montana iirc from my vintage card collection but is never really mentioned in GOAT conversations.
Rodgers is better than Young. He'll have 4 MVPs in a week.
Problem is, now there is a pattern of noticeable drop off from his regular season GOAT tier numbers to just "good" tier postseason play (including his SB run and SB MVP. Otherwise it would be average).
I think Rodgers is going to be in the 2nd echelon of all time great QBs due to last night's debacle. Think 6-10 and the likes of Marino, Young, Brees (also only 1 SB appearance/win despite HUGE numbers), Favre as company.
1-5 needs 2 rings + MVPs + stats ...Brady, Joe, Elway, Manning, Unitas.