Do You Call It Soda or Pop…or Maybe Coke?

I stumbled upon this story where some smart folks at Harvard University broke down regional vocabulary for several words. The one that stuck out to me the most was the terms used for soft drinks -- "soda" or "pop".

So, which do you use? I know a lot of us from Cajun country instead go with option 3, "coke".

Here's a map to illustrate the findings: