I used to work at a highly successful Wing joint in college. They started out as a small carryout, expanded to sit down, and then expanded to 5 total restaurants. I have taken tons of friends to this place and all of them agree that they have the best wings. The reason is because of the sauce. The secret ingredient was Pepsi. They made their hot sauce in a couple gallon paint buckets. The ingredients went like this.
3, 1 gallon bottles on Frank's red hot sauce
1, 1 gallon of sysco liquid Butter it
Cayenne Pepper
1, 20 ounce Pepsi
You can tweak the amounts however you like, but you should try the recipe, its money.