Coke with sugar is so much better than Coke with corn syrup. It was definitely much less obvious of a difference with the Pepsi and Mountain Dew with sugar, not sure why that was.
Keep an eye out for Coke 2 liters with this cap about this time of year btw:
This is "Passover Coke," and it's the only time you can get 2 liters of Coke with real sugar in the US.