I mostly go with water throughout the day.
With meals I usually have a Isopure zero carb drink, which tastes great and lets me load up on protein without all the fat or carbs.
I had stopped caffeine completely, but now that I'm off the caffeine wagon again, once a week (usually Friday) I'll load up on 2 or 3 cups of strong tea -- either Earl Grey or Chai, with cream and Splenda.
And then Friday evening it's usually a couple glasses of wine with supper as an extra treat.
Then back to water again. Repeat and rinse.