Angel food cake is perfect for fluffy and delicate texture and sponge cake is perfect for soft and dense dessert.
Orange sponge cake has a richer flavor due to both egg yolks and white whereas angel food cake is sweet with subtle orange flavor.
Orange sponge cake goes well with various toppings but with angel food cake you have to sort to lighter toppings like a thin glaze or dusting sugar.
Orange sponge cake has egg yolks and fat but angel food cake is only made from egg whites so has lower fats and calories.
Orange sponge cake is perfect for elegant desserts for any occasion whereas angel food cake is perfect for summer events and casual gatherings.