I'm in love with my mom's Oreo cake. It's a layer of crushed Oreos, chocolate pudding, a whipped cream and cream cheese mixture, and then plain whipped cream. Ugh, I gain ten calories just thinking about it, but it's soooo good!
Zucchini bread is my second favorite. It sort of has the taste of carrot cake, or any other spice bread.
As far as international desserts go:
Spaghettieis from Germany - vanilla ice cream in the shape of spaghetti noodles covered in strawberry "tomato sauce" and shaved white chocolate "parmesan cheese".
Tiramisu from Italy - coffee-soaked ladyfingers layered with mascarpone cheese and amaretto/cocoa powder.
Alfajores from Argentina - two shortbread cookies with dulce de leche (milk caramel) in the middle, sometimes coated in chocolate and sometimes just rolled in shredded coconut.