Lemon hard candy is rather refreshing, thou I also like strawberries and cherry as well.
I dont go for apple hard candy since I rather prefer the taste of regular apples more.
But no matter what sweet flavor you give me, im gonna enjoy it ether way.
Also have you tried banana juice on its own, not really as good as the actual fruit. Watermelons are good as vegetable and as a candy tho its also good b juas as juice as well (specially when you cool it down a bit).
My favourites are blueberries, raspberries, strawberries, apples, watermelons, and apples.