The vast majority of people can't tell the difference in double blind taste tests, especially at the cold temperatures it's served at.

I reckon with properly blinded tests many people couldn't tell the difference between 7up and coke if you served it cold enough.

After drinking a lot of diet Coke & Dew because soda is free in my office and I don't want to be a fat ass, I actually prefer it to the regular stuff. The regular is too sticky and sickly.