i have a 9" pan that works great for 2 eaters and gets the job done for 3 in a pinch, but i know i need another pan for when i'm feeding 4+ people.
I hear 12" and 14" a lot around here. any one care to share their opinion or experience?
Deep Dish pans are relatively inexpensive and you can use them to bake cakes and other things,
so it's worthwhile to keep a few extra pans at variouse sizes handy.
I have a few 10" pans for personal pizzas. The best part about those is they fit inside my toaster oven (your oven size may vary).
I have several 12" pans for the medium pizzas. 12 inch pans are a good size for deep dish and they bake the most consistently for me.
You get about 6 Chicago-sized slices out of them (though I often cut them into 8 ), which will serve 3 to 4 people.
I also have a large 14" pan for extra-hungry people (or so I have leftovers). It makes 8 Chicago-sized slices.
The 14 inch pizzas take a little longer to cook through in the middle, so you may have to adjust time and temperature.