My personal advice would be to have everyone that comes to make either a side dish or dessert for example. Just make sure and divvy it up so that you have some variety and not 6 plates
of brownies for example. And then usually as host I would be responsible for the main food item(s). Obviously everyone will have their opinion as to the perfect food for a SB party, and I think
it all depends on how laid back or fancy you want to be. Personally I would go for things like pizza, beef sandwiches, subs and chili for example. As a host you want to be sure you have food that can be
prepared ahead of time since you're going to want to see the game as well and not be stuck in a kitchen.
Another thing I have personally never done, but others have is doing a themed party where dishes are made based on who the teams are in the game itself. Or another is food that is specifically
made that is had in the region where the game itself is held.
Here's a personal fave I like to make and either serve myself or even take to any of the SB parties I've been to.
Please note I've never used the nutmeg in this recipe, and I definitely use spicy Italian sausage for it. Good luck on what you end up doing and please post what you have, pics are always good too.