I love fruit. It's pretty healthy and it is darned tasty to boot. I am not very good at cooking with it yet, but I will eat it plain anyway.
Cherries. Absolutely at the top. I love their flavor and texture and juice.
Blackberries may be my favorite berry--though fresh raspberries make for stiff competition. Strawberries are very good, but the dark sweetness of blackberries is a little more appealing.
Otherwise, pears (I had one for breakfast this morning!), apples, pineapple if fresh, papaya, oranges. I don't much like oranges--too much work, and too much mess.