For a less sweet version, you can use unsweetened crushed pineapple and reduce the amount of sugar in the soaking syrup.
Substitute the Cool Whip with freshly whipped cream for a more homemade texture and flavor.
You can experiment with different cake and pudding flavors, such as chocolate cake with chocolate pudding and toasted coconut.
This cake tastes best when made a day ahead, giving the cake plenty of time to absorb the pineapple syrup.