But what are they, specifically? I'm asking sincerely, and not as a particular fan of either (the Panthers are my team).
Unless you know them personally (do you?), I don't see how you can accuse Peyton of not living his Christianity. You just don't know.
But it's quite clear that for some reason, God loves Eli more than Peyton, and delivered two Super Bowls to him despite him being a below average QB who plays for a marginal team.