I heard an interesting thing on the radio. They basically said, the Giants worked so hard to get the #1 seed, and now they have to face the Eagles, that's a crappy reward. It's never good if your favored-on-paper to be playing a divisional rival, I know I'm in the minority, but the Eagles terrify me.
Especially compared to Arizona, who is terrible on the road, I would have to imagine that most Giant's fans would rather play Arizona then Philly. I really can't think of a argument for wanting Philly.
The question (knocking on wood furiously) is would you sacrifice possible home field next week (with a Carolina win) to get the Cards instead this week? Especially since I haven't heard of a massive Carolina home-field advantage, I say yes. This is of course not taking into account the swagger we would have from being #1 and have just beaten the Panthers.
PS. It was Bill Simmons's podcast I heard this on, and was immediately followed by the suggestion that the #1 seed gets to choose which team they want, which would be massively entertaining just from the instant bulletin board material it would give the chosen team. I think that's an awesome idea.