User blog comment:DYBAD/Character Sheet/@comment-5693669-20141022110838/@comment-4867780-20141023210404

I think Omnipotence stays essentially because people love it despite all its inconsistencies, because it embodies the ultimate and most extreme fantasy and they are about as willing to give up on it as I am to give up one mine. We're all the same when it comes to what we like.

Each power has a variety of possible levels (as illustrated by the diversity of Known Users), and they are ultimately as powerful as their power-source allow them to be. Beyond arbitrary statements saying X beats Y, it is ultimately the in-universe power structure that determines who would most likely beat who.

I somehow managed to find a credible origin for an ultimate level of AR, and as of now can't quite imagine one for NE, at least none that would unquestionably do the trick.