@Scryer I'm going to say:

Dark Angels: "Classic" combo (sausage, mushrooms, onions, green bell peppers)

Blood Angels: BBQ chicken

Imperial Fist: Deep dish pizza

Wonder what the Dark Angels, Blood Angels (also no, just because they're Vampires, they don't automatically get lumped with blood pizza) and Imperial Fists would get?

Also, would like to oppose the Death Guard/Plague Marines/Nurgle worshipers choice. They'd have anchovies.

I wonder how many Imperial Guardsmen are killed to get the order through.

@Chris Sizemore - Eldar would be snobby deep-dish artisan pizza eaten with fork and knife

I am intrigued by your Marine Pizzas and wish to subscribe to your periodical.

Plague Marines should be Pineapple and Anchovy. Ork pizza would be sausage and mushrooms. Eldar pizza would be supreme with extra cheese.

The sons of Sanguinius prefer social media ready artisanal pizzas (pay no attention to the blood sausage)

Alpha Legion: Pizza got delivered to the "wrong" address. (just as planned)

Blood Raven pizza on the other hand consists of slices the other chapters "gifted" them.