Board Thread:General Discussion/@comment-70.162.32.87-20140716020856/@comment-9212235-20140922003203

Nocturnal is the Ur-dra and a likely candidate for being the most powerful.

Malacath-who-was-Trinimac is also in contest for being the most powerful as Trinimac was pretty much the OP of OPness in his day.

Herma-Mora could maybe be the most powerful due to him knowing everything (yes even the secrects he doesn't have/know he still has them/knows them). Also his ties to Memory help with his All-Knowingness and power.

Jyggalag has been outright states as being the most powerful back in the day. It's possible that now he's back he is once again.

Sheogorath, pre end of 3rd Era could have been because he's still Jyggalag and there's that whole theory of Sheo manipulating pretty much everything from behind the scenes due to him still being able to tap into Jyggie's power but really just using it to F with everyone. Plus he has been known on multiple occations to have defeated other Princes at their own game.

My opinion is... well I have no idea.