personally call it soda. But pop is just as common as soda it seems in this area. I have a friend who lives in VA, and he calls all soda, Coke. He'll say things like... "what kind of coke do you want?" reply: "dr.pepper" lol
Or Limo (short for Limonade == lemonade) for any other soft drink.
Haha, I remember that punching thing from my time in the military. German Fleck camouflage has a tendency to form paprikas...which of course didn't take long to turn into targets for well-aimed good-natured punches.
It seems like it's really a regional thing. Down south, everything is a Coke. In the midwest it's pop. In New England, I think it's soda. I'm not sure about out west though. I've never been there before to notice.