If you're a real football fan, the best place to watch a game is from the sidelines. I can not recommend this highly enough. It doesn't even have to be on the NFL (good luck with that, anyway) or college level; I've had the pleasure of watching more than a few games on the sidelines under the lesser brightness of the Friday night lights, and you see and hear things that give you a better insight and appreciation of the action. It's an incredible perspective.
But it does have its drawbacks compared to the normal experience. For one, depending on your locale, it's probably cold. You've got to stand the entire game. There's always the chance that the physicality gets a little close to you, such as the time a tight end got pushed out of bounds, but in to me, which, despite my valiant (yet inevitably hilarious) attempt at a stiff arm, sent me flying backwards. And there are no wings, potato skins, mozzarella sticks, or beverages. Oh, and no bathrooms.
But as I found out last night at a movie theater in Brooklyn, football in 3D is close to merging the best of both these worlds. But it's not quite there yet.