...but why set resolution and sharpness as the main points toward which to strive? How about timing and composition? The best lens in the world doesn't count for anything if you don't get the shot. This is not even bringing up "concept".
My point is that while the super teles may be among the "best" lenses ever made, they are quite specialized, and thus rather restrictive.
If we are talking the most sharp and highest resolving "normal" (or thereabouts) lens, I would make an offhand guess that it would be a macro lens, either around 50mm or around 100mm.
That is just a guess, though.