Before I was diagnosed, it was (full sugar) Coca-Cola. I used to be not so keen on the diet stuff (or any diet Cola). I am now used to the taste of the diet drinks and always order Diet cola in any pubs when I'm driving afterwards. In the last year I think I have drunk only one can of I full sugar stuff, and that was half way through a long cycle ride.
I'm not sure what my favourite cold drink is. I do like fresh apple juice, although this might be because of my liking of Cider. Grape juice is very nice too, and of course so is Shloer.
McDonald's Chocolate Milkshakes are very nice and so are Frijis, but of course they are full of sugar.