The sugar-based Coke (Pepsi too) is better than the HFCS stuff.
I remember the soda we bought in Italy years ago. Before our ship would leave the U.S. for a deployment we'd load up on Coke and Pepsi. Eventually it would run out and we'd be forced to buy from the local market at whatever port we stopped in. I don't know what they did to it at the Italian bottling plant, but it was pretty lousy. It was an acquired taste for sure!