Well, now you're just talking crazy. Comparing a McRib sandwich from McDonalds to ANY legitimate BBQ place that cooks their meat in a pit and/or oven is ridiculous.
But otoh, Papa Johns, and virtually EVERY pizza joint in the world, makes some type of flour-based crust, adds a tomato-based sauce, adds meat and/or vegetable toppings, and puts it in a pizza oven to cook. Generally speaking, the most discernible variable is the taste of the sauce.