Judging by the poll, it's a wonder Pepsi is still in business, LOL.
I don't really have a preference for one or the other. I like both, and will choose based on which one I feel like having at the time, or whichever is being offered. NEVER diet, though. I can't stand diet soda, no matter how "natural" the fake sugar they use in it professes to be. They ALL have a crappy aftertaste.