» Sun Nov 27, 2011 2:04 pm
First off, I'm only going to consider non-divine entities. No Magnus, no Sotha, no Syrabane, no Zurin (Talos). Then we have to consider the major orders / organizations. Mages guild, College, Mirror-logicians, Psijiics, Telvanni, and Necromancers. The Guild has had the greatest temporal influence, but they haven't done anything spectacular in the metaphysics department, AFAIK. Mirror-Logicians have put up a good fight v.s. the most poerful robot ever for a few hundred years, but I would hardly call stalling a robot-god a victory. The Psijiics can teleport islands around, and smash whole fleets, which is very cool. The Telvanni seem to have treated the OB crisis like it was nothing, but they failed to end it, and haven't achieved anything spectacular that we know of. Finally, we have the loose association of necromancers, who have, among other things, twisted a daedric artifact to their own whims (black star), and constantly spit in Arkay's face. I'd say its a tie between the Psijiics and the Necromancers.
For individuals (what this thread is really about) its quite hard to say. Choosing the most powerful mortal wizard is kinda like choosing the best failure. Everyone who's truly great becomes a god, one way or another. But from the leftovers, Divayth "I know all the secret doors between the realms" Fyr is probably the most powerful.
If we include gods, Zurin absolutely wins, as he now has CHIM and regular-strength godhood and is the core of the mofu Numidium and is the Underking, iirc.