A Fuji apple that has been sitting for about 1-2 weeks. Its the sweetest apple you will eat. Most fruits spoil when sitting, but the fuji apple further ripens, but doesnt rot.
Plus, I am partial to apples since my grandfather started his fruit orchards with apples. All my uncles grew up in apple orchards. My dad worked in orchards from the time he was 7 to when he was 35. One of my earliest memories was climbing apple trees and sitting there with my sister and cousins and eating apples.
That said, a fresh orange is tough to beat - but so is any FRESH fruit.