Why is this even an argument? It's obvious.
The Patriots went up against the "OMGWitWBBQNOBODYCANSTOPUS" offense of the Colts and help them to THREE points, and then they went against the best defense in the league, The Steelers, and score 41 on them. It doesn't matter if T.O. plays or not, Belichick isn't like every other coach in the league, he's not gonna target your weak point(s) and focus on that, he'll target what you're best at, and shut that down, leaving you with nothing.
Bottom line is that the Colts have a stronger offense then Philly, and Pittsburgh has a better defense, and both were stopped by the Patriots. McNabb has proved before that he really struggles in pressured situations, and anyone who's watched a game in the past 2 years knows what the Pats secondary can do to a struggling or nervous QB. Tom Brady, on the other hand, as well as most of the Patriots lineup, plays best when in pressure situations, and I don't think there's any kicker in the league that I'd choose over Vinatieri when a clutch FG is needed.
The Eagles will not be able to withstand the Patriots, they aren't used to taking on such a complex strategy, they're in the dramatically inferior NFC, and they've had an incredibly easy schedule this year, before the Falcons last week, they'd only had 2 games all year against playoff teams. The Eagles aren't ready for Belichick, they aren't ready for Brady, and they aren't ready for Super Bowl in general. Patriots win 27-16.