It's an easy choice between Athena and Astaroth. Athena actually kept her grace through the millennia, whereas Astaroth was turned from a goddess into a demon. Interestingly enough both were goddesses of beauty, among other things, but only Athena remained such, and also become a symbol for other positive things, such as democracy. Astaroth mutated from Astarte/Ishtar into a duke of hell.