Which Soda You Prefer With Your Floats?

I don't know about you but summertime calls for 'coke floats' or in this case root beer floats. I think we have these more in the summer on a regular basis. To be honest, I grew up with regular coke floats, it never dawned on me that you can use any soda you like. 

So as an adult, I was introduced to rootbeer floats and they have been a fave ever since! Which is your favorite soda to pair with ice cream for a float? Dr. Pepper, Pepsi, or any other coke flavor?