I ordered the same meal from Papa Johns, Domino’s, and Pizza Hut. They cost about the same but the pizzas were wildly different sizes.

• I ordered a stuffed-crust cheese and tomato pizza, barbecue wings, and dips from Papa Johns, Domino’s, and Pizza Hut.
• The Pizza Hut pie was the heaviest of the bunch, weighing a third more than the Domino’s one.
• Pizza Hut had the thickest base, while Papa John’s was quite floppy.

The US has four major pizza chains – Domino’s, Pizza Hut, Little Caesars, and Papa Johns. All of them apart from Little Caesars have hundreds of sites in the UK.

I decided I put them to the test, so I invited some friends round to play board games and compare pizzas.