Cunningham or Nimitz as the best admiral of the war

Who was the best admiral of the Second World War?

Cunningham receives the narrow edge because the Mediterranean imposed more concentrated threats and faster decisions with fewer resources.

Both commanders managed major coalition wars with strategic consequences far beyond a single fleet action. Cunningham's Mediterranean command receives the edge because he faced tighter geography, concentrated threats, fewer resources, and less time for decisions. Nimitz had greater oceanic distance to manage, but that distance also allowed more time and space to organize responses than Cunningham usually enjoyed. The comparison treats command difficulty as a product of theater conditions rather than victory totals alone.