I'll admit that I'm fairly ignorant to the NFC as I really only follow the Pats and their rivals. But the impression I've had all year watching the scoreboard is that I couldn't tell whether the Eagles were actually that good or not because they didn't play anyone this year. They had a creampuff schedule followed by a tomato can Giants team in the divisional round. I figured that today would be a great test for them, then the 49ers lost their 3rd and 4th string QBs in short order, so my opinion is unchanged.
They're going into the superbowl and I still can't tell if they're any good. Maybe they are, they just haven't been tested at all. But in the back of my mind I still think KC or Cincy will just roll them in two weeks.