We always called it soda pop when I was a kid (Chicago)...I call it soda now. A pop generally means a beer here, go out and have a few pops with friends!
We've always called it pop. Coke is Coke and cola just like any cola(store brand etc).
Root beer is root beer
Ginger Ale is ginger ale
Orange Crush or any orange carbonated is just orange pop
And so on!