Like all "greatest" conversations, it depends on your criteria.
If Rodgers won 2 more Super Bowls and MVPs, it wouldn't matter because he is perpetually boring if not outright unlikable. He's at his most likable when he's being himself, at least the arrogant and show-boaty side.
If he played in SF he would be exactly like Kaep and taunt and talk shit all of the time, except he could actually read defenses.
That being said, Favre will always be the greatest Packers QB. His legend will only grow from here even if the truth is that he and his team were perpetual underachievers.
Starr was a good, serviceable QB, can't see the argument there. I guess there's the Lombardi connection but he'll always be overshadowed by Lombardi.
I dunno man, I don't discount Montana as the greatest QB of all time because of Jerry Rice and Bill Walsh. I am tempted to discredit Bart Starr on the basis of his abysmal head coaching record though.
Overall this is a difficult discussion for me because I don't think I've ever been so angry at a professional sports figure as I was when Brent played for Minnesota. And it wasn't even him so much as having to endure all these analysts basically saying that the Packers
as a franchise were a joke without him, that the huge fanbase was basically nothing but Favre lovers, and that we would soon become about as relevant as the Jaguars or Browns for perpetuity. Because who could really believe that a team from a small market like Green Bay/Milwaukee could be that popular?
And then every middle aged guy jumped on the fact that some 40 year old "looks like a kid out there, so maybe I can do it too!". And the cherry on the turd sandwich was the fact that he went to a division rival known for having players that "moon" us during games.
I haven't even started with the whole waffling thing that led to the whole thing to begin with.
Thank God Rodgers won us an Owl or else I'd still be actively pissed.