The Eagles are the team no-one wants to play, as they are the hottest team in the NFC heading into the playoffs. The defense, bolstered by some young talent at the linebacker spot has been stellar, and Westbrook continues to make game-breaking plays in spite of being banged up. It doesn't matter, since Buckhalter, when he gets the ball can be every bit as effective.
The Giants limped into the playoffs, loosing 3 of 4. They didn't care about some of the games, preferring to rest their starters, but having lost to the Eagles only a few weeks ago, they cannot feel confident going into the game. Eli Manning can get rattled, and the Eagles pass-rush got to him and forced some picks. I expect a similar performance this time, except that the Eagles will do a better job of finding a balance between the pass and run to keep the Giants off balance.
These rivals always seem to have close games and through their history there have been many freaky plays that changed the outcome at the very end. The Giants are last year's Super Bowl winners, so you can't count them out. But IMO the Eagles have a significantly better QB and that will be too much for the Giants to overcome. McNabb since his benching has been the best QB in the league, and has had his best season ever, including the year they lost to the Pats in the Super Bowl.
Besides the Eagles are a team of destiny, going into the last week of the season, it looked impossible for them to get in, yet two teams lost in games in which they were favored, and the Eagles demolished the Cowboys, whom they lost to earlier this season in a shoot-out. The Eagles are playing their best football now and the hot teams tend to keep going. Not only that, but the Giants are the toughest team left in the NFC, as the Eagles beat the Cardinals already. This means that the Eagles see a clear path back to the Supe and they're not going to let this opportunity slip away.