Cheeseburger - provides a bunch of protein, fat, some salad and bread; it's an ultimately balanced meal and one designed for sustain people (e.g through flights or staying up at night/in the morning)
Some of us don't eat them that often because of our culture, anyway.
It's definitely what I would get. I always need extra protein packed all together.
Pizza - You just know it's going to be nice. Need I say more? It's less about comfort but about safety and not wasting money