I wonder how training could be compared, really. It`s not just how many hours he received, it counts a LOT what exactly he was thought during that.. For example, the US pilots are usually called well trained, which is true in the sense that they passes a very long training, but from what I have read just recently, this training was rather more about flying and not fighting. They grow very good at handling the aircrafts, general flying skills, but there was very little simulated air combat done otherwise. In that sense, they were rookies, but also highly agressive, as told by their German opponents, and important attribute to a fighter, especially if you have massive advantage in numbers. I can`t say for the RAF, pre-war they seem to have followed the same trend, and in mid-1940, only the most basic training was given. Then what happened, I don`t know. Did they increased the amount of combat training or they kept telling the pilots just how to take off and fly in formation? The LW held the RAF pilots far less agressive and less initiative than those of the USAAF. I can say very little for the Russians, their training AFAIK was rather low standard, never more than 50 hours received. They gained their experience directly via combat - some were very good indeed, most of them were poor..
Japanese were of course the BEST individually trained fighter pilots early in the war, a true elite. But they can`t keep up that training with those losses, so quality declined..
Germany of course was in far the best position early in the war, with a lot already learned in Spain, and not having Stalin at home to mass execute guys like Moelders and Galland. They already perfected their tactics there, and only refined them later. German training seem to always strongly emphasize on tactics of air combat, and lasted well after the official training course, the rookie being first sent to replacement units, then he was put under the wings of an experienced rottenfuhrer, to learn how things go in life. Up to about 1943, their rookies spent just as much time in trainers as the Allies, and they received it from experienced teachers. From 1944 onwards, the training time went down to about half, to 100 hours for a fighter pilot, half of that the Western Allies but twice of their Soviet foes. But they still received very good tactical training, practicing air combat, the moelders formation was high on priorities. It gave them a very good base to start with, but the experience had to be also gained in real combat.
