[Formendacil]

Beauty, mechanism, and efficiency against its enemies?

I would say that, balancing those three equally, Numenor comes out clearly in the lead. But if you mean, realms or kingdoms of the late Third Age, I fear that the answer must be Mordor, for it had the highest level of technology (mechanisms) and off efficiency against its enemies.

I would fault your criteria for the "most fair" realm, but based on that criteria, Mordor would appear to be the logical answer- or possibly Isengard.

NOTE: As a matter of opinion, should this not be in Novices and Newcomers? Not quite sure I understand the distinction between the forums...