Holy Hell all this out of Snow, Rain and Fog?!?!
WW2 is an immensely complicated matter and there is no one metric that says this country is awesome sauce therefore the best. For every number or piece of technology you count as the end all answer to the question, one can all too easily counter with another attribute. This doesn't even take into account the possible twists and turns that history contains, neverminding the fog of time.
Short version: This is equivalent of "My Father can beat up your Father".