User blog comment:Crimson and Darkness/Volume 25 discussion blog/@comment-172.112.59.89-20180428084249/@comment-28884330-20180428164039

The god classes are unofficial and simply normal descriptions, unlike those of the Devils which are well established as part of a system, hence there's nothing that says how many classes of gods are there or which gods belong to each class beyond the ones that have been explicitly mentioned with such. And yes, a Satan-class Devil is above an Ultimate-class Devil.