Its no secret Americans have opinions about pizza . From the value of crusts to the acceptability of pineapple as a topping, many pizza debates have cropped up on Twitter over the years.

In honor of National Pizza Day, Grubhub decided to share some hard data and shed light on Americas pizza preferences. The food delivery service calculated the most popular toppings, the trendiest pizzas, the states that order the most and even some regional differences.