Suparossa on Central between Montrose and Irving - best stuffed pizza in Chicago (and therefore, obviously, best anywhere). Compared to Giordano's / other places - sauce is better, crust has better texture and taste, toppings are large chunks and super fresh.
I always get shrimp and garlic with anchovies on top of the sauce. Three slices and then I pass out.
You may think my choice of toppings is gross - but seriously - Suparossa is the best. Biagio's is still the name of the catering and special event arm of the company.