If you're going to drink juice, it's best to find a juice bar or juice yourself. Many of the nutrients in juice have a short life span, and juice is of course crazy high in natural sugar. Although naked juice is certainly one of the better options if you can't do fresh.

The spritzer option is really the easiest way to start. Simply mix your preferred juice with Perrier or whatever your preferred brand is. Adding lemon, lime, or 100% cranberry (trader joe's has a good one) for a little kicker can help as well. The more you get used to it, the more water you can add. If you've ever had Vietnamese food, their recipe for lemonade is lemon, sugar, and sparkling water. There are also some interesting ice teas that have fruit notes but no sugar or sugar substitutes as well.

Do you dislike all water? I know this sounds silly, but some do taste better than others. I have a filter system on my sink that does a good job, but my favorite designer water is Voss, and Fiji being a distant second. Nothing like encouraging an expensive new habit, but Voss is high in silica and so it's very smooth.

I've never tried Vitamin Water because it's not terribly lower than soft drinks in it's sugar content. I also still perceive fizzy drinks as more of a special treat for some reason?

If you experiment, raw honey and pure maple syrup are sickeningly sweet, so a small amount goes along way.