Off the top of my head, I think that I usually eat & prefer all fruit to be cold.
As far as the hot & cold of foods - I don't mind most foods hot, but I almost never heat up anything that has already been cooked. If I am eating a can of soup (that is not a part of a family meal), I just pop the lid off and go.
As for your comparison of taste buds being able to taste hot better, the only thing like this that ever really jumped out at me was coffee. I don't mind cold coffee at all. But I have noticed that good coffee tastes good when it's cold, but bad coffee tastes way worse when it's cold.