Axis showdown.   stance: nazi germany:
An economic superpower in Europe, advanced scientific and military projects, new shock wave military tactics, and far more powerful than Japan.
Japan was fighting in Jungles in smaller bands, and their navy was stopped pretty quickly. Only their loyalty to emperor stopped the entire country surrendering a couple of years earlier.
Germany on the other hand were one of the world big boys, new military tactics and equipment, new scientific advancements, a economic power world wide (before the war). No contest. Nazi Germany wins.,