Water is what evapourates in the drinks so water would evaporate quicker.
If your doing a science project on this you will need same amount of liquid same container in the same room temperature. If you want accurate results I would suggest using something to block wind or direct sunlight on a single drink. I would also use the smallest liquid measurement there is because drinks wont evaporate in big amounts at a time.
I did a science project on how fast water, milk, coke, or Kool-Aid evaporated faster. I discovered after 18 days water and Kool-Aid evaporated at about the same time. Milk hardened so it could not evaporate. The coke took 18 days just to get one milliliter less. So water evaporates the fastest.
Water because the others take weeks BUT water takes 1 week
Ill tell you later cause thats going to be my science fair project. I should have the answer in a couple of weeks.