Peyton: I've always liked clutch QBs over stat guys (one of the reasons I think Montana is a better QB than Marino, stats aside). Peyton very much reminds me of Dan Marino and has been more successful. However, if given the option for a big game, I take Eli every time (just like I'd take Montana over Marino every time except maybe in a QB competition).
Brees: This is a bit tougher. Better stats but half the rings. I like Brees better than Peyton or Rodgers (resume wise), however his one ring was more due to a pick-6 then his own heroics (which is not to say he didn't play very well in that Super Bowl mind you). I think you could make a very good argument for Brees being better than Eli, but given Eli's heroic wins, again I favor the clutch performer. That and I'll readily admit that I'm being a homer here.
Roflberger: He suffers a bit from the same problem that Eli does ... he doesn't look like a prototypical QB when he's doing his thing and he doesn't have the outrageous stats that someone not familiar with how he plays would ogle over. However Ben (as is being shown now) is a winner and sometimes wins and rings are the biggest stats there are. In this regard, Roflberger is definitely in the Top 3 in the league.
As for your "takes more than a QB to win a SB ...", don't be a straw man. You as well as I know that the QB is the single most influential component to a SB winning team (especially in the current climate of the NFL).
Having said all that, all the QBs mentioned are today's top QBs (no matter what order you want to put them in) and the fact that we can have this conversation is a testament to the fact that Eli, is indeed ... elite.