I have the orange, lemon and fruit ones pretty much every day. To me they taste like sugar free squash, not tried the wine flavour but I'm not a drinker at the best of times and hate the taste!!
So far I have tried the Lemon, mixed fruit and the orange. I would recommend them all really but personally the Lemon was my fav by far. It tastes nice and fresh kind of sherberty without the sharpness and has a lovely sweet edge. The only one I haven't tried is the wine flavor wonder if its tasty.