Don't get me started about apples. I worked at my friends apple orchard in high school where they grew at least 20 different varieties. After eating a fresh picked tree ripened apple, you will never grab one of those gas chambered store bought ones again.
Oh, finally someone says it.
Apples get lots of undeserved blame on this forum.
While i recognize that this post are made for fun, i see that they fail in taking account one important thing, that some of you already said; much of the enjoyement of a fruit depends from the environment; i'm not just talking about cultural background. I'm talking about the simple temperature outside your house, and the season.
A chilled watermelon is really hard to beat in an hot summer day. BUT, when the late days of october come, same can be said for roasted chestnuts (possibly eaten while you drink some freshly fermented wine, or as we call it "vin novo"). For us in temperate climate, fruits (good fruits, not store bought one) are so much tied to the season that is almost impossible (to me) to imagine a good eating experience outside their season.
That said, my list is as follows:
1) Mango (guess what? never tasted a tree ripened, but i found some excellent ones in store in september)
2) Apricots (only if picked right from the tree)
3) Navel Oranges (close to the end of the season)
4) Apples (Backyard grown - forget about store bought, they represent apples as much a Tommies represents mangos)
5) Dates (yes i love sweet, sweet fruits)