No particular order: banana cream, coconut cream, lemon meringue, key lime, Almond Joy, pumpkin, sour cream blueberry,
...piña colada (yes, pie), mixed berry, apple, dulce de leche (yes, pie), French silk.
Also in the running, strawberry rhubarb, apple, caramel pear, peanut butter chocolate, peach, chocolate pecan cheesecake (it's really a pie, not a cake).
We usually have pecan too, and while it's good, it's next tier for me.