Its pretty hard to screw up a pizza. I like a variety. Lighthouse is quite tasty, I think La Casa is overpriced for what you get, but is also quite good.
To me, there's no question though, the best pizza comes from a Pizza Hut run out of a Conex box in Kandahar staffed by an Afghan who has probably never washed his hands and the hot breeze blows poo dirt all over it while you eat and the smell of the poo pond provides yet more atmosphere.
Or when the chow hall runs out of food at the end of the month, and you end up having a pizza made with canned tuna and thrice reheated peas as feature toppings. And so much chili power to cover up the fact that its gone bad, you can't taste anything but heat anyway