Cherries. In general. Anyone saying they like other fruits are wrong or have only ever bought store bought cherries.
Seriously, go to a cherry tree, pick one and eat it. They wither fast so store bought are old, bruised. From a tree though, there is nothing better.
Also, Spartan Apples. Not apples in general, some are crap, just Spartan Apples. Best variety.
Hmm, pie.