I tried wine in the vase once. I had a shity red wine that was painful to drink so I used it instead of water. It made the shisha (can't remember the flavor or brand now) taste of red wine but it was waaaaayyyy to powerful, it completely overpowered the taste of the shisha. I would recommend a 50 50 mix of wine and cool water to not make it overbearing, possibly 30 wine 70 water.
I guess it would also depend on what type of ine you are using.