I tend to think the least messy the fingerfood is, the better. Obviously, you want to go for something like Doritos or Cheetos, but I hate how messy they make your hands and you're trying to use the controller at the same time and keep it reasonably clean. Sitting a moistened paper towel nearby can help. I prefer a minimally messy chip, like pita chips with hummus, or grapes. Which also end up being a bit more healthy. When friends are over, I like to make games into pseudo-drinking games, I don't set rules per se, like "drink if you die" but I find that if you're drinking alcohol and you have a lull in the game, like you're waiting to respawn, you end up taking a drink to occupy yourself in the moment. You can accidentally end up quite drunk this way, haha -- believe me!