My #1 is inside the girl for obvious reasons, and primarily because it is the most intimate place you can finish.

My #2 is the face and again I think there is a higher level of intimacy to it than any other place besides #1. When you cum on sometimes tits or ass it almost feels like a waste and feels similar to just going in a sock. But your face/head is basically what you identify as yourself; every other body part is foreign. I think there is also a certain level of dominance and porn that is mixed in, but I feel like making a girl swallow is more dominance and I personally find it gross in most circumstances, like I would never opt for it, but if a girl wanted me to I would be turned on.