Most common order:
Sausage, mushroom, black olives
But once in a while, I like a cheeseburger pizza with a drizzle of BBQ and a sesame crust.
Also, local place does an amazing pizza with ricotta, thinly sliced zucchini, and lemon. And it's really amazing. A great summer pizza.
Or the "Sticky Fingers" from Mr. Jim's (pepperoni, ham, Italian sausage, beef, mushroom, onion, bell pepper, and black olives) with a garlic butter crust.