Good argument about their passing game, but it's not the passing games that scare you that win Super Bowls ~ it's the ones that execute under pressure.
If you don't believe me, consider 2 words: Randy Moss.
And then think about the 5 times we've won.
Scary? Nope. But stone cold effective.
***
As for Brees versus Newton, it's not even close.
Brees is an extraordinary Field General and a cold-blooded assassin who's already proven that he can overcome pressure and adversity to win a Super Bowl.
Newton is a pathetic, angry clown who's riding the coattails of the talent that he was blessed with. He doesn't love the game, he takes no pride in his work, and he doesn't give a rat's ass about winning, his teammates, or anyone.
With our defensive Front 6 having been decimated by personnel decisions over the last 2 Years, it'd be foolish of us to take Victory over anyone for granted, but I'd much rather face an idiotic jackass like Newton who doesn't work and isn't prepared.