Board Thread:Lore Discussion/@comment-72.77.73.35-20140408131341/@comment-16644430-20140412233148

As I understand it Aedra and Daedra were originally the same type of creatures and the only thing seperating them is whether they chose to participate in the creation of the mortal plane or not. There were more than 8 Aedra but only those remained able to affect the world the others lost themselves. I think the Aedra were amongst the most powerful of the spirits and while much of their power is tied in the world there is nothing stopping any of them from being stronger than any of the Daedra.

As a result I think any of the Aedra are technically stronger than the Daedric Princes but unable to act on it for the most part. Akatosh at least seems vastly stronger than any Daedra, though he might have trouble besting a Daedra in it's own plane of oblivion.