Get ready to settle the ultimate debate: which fast food pizza reigns supreme? From the iconic, budget-friendly slices of Costco to other contenders you know and love, this tier list ranks every single fast food pizza worth your dough. We're diving deep into crust crispness, sauce tang, cheese melt, and topping generosity to create a definitive ranking. Whether you're a thin-crust aficionado or a deep-dish devotee, prepare to have your favorite pizza's place in the pantheon challenged. Is your go-to slice worthy of S-tier, or will it be relegated to the lower ranks? Let's find out!