The Eagles are number 3 in defense. If the Cards can beat them they can beat anyone. Infact I think they'd have an easier game against a worse offensive team like the Ravens vs. the Eagles.
I would agree and i think the offenses of Pitt and Balt are bad but Mcnabb tends to meltdown. I just see the Eagles vs Giants game as the weakest of this past weekend. I think the Cards are playing the best balanced and complete football. However Warner has had time to throw but Mcnabb has not been protected well.