GrauGeist
Generalfeldmarschall zur Luftschiff Abteilung
Japan had been stockpiling fuel, munitions and new equipment (fighters, tanks, etc.) In strategic locations on the home islands during the last year's of the war.Still, I'd bet the average Luftwaffe fighter squadron of Jan 1945 would have better trained pilots than an IJN or IJAF fighter squadron of the same time.
Along with that, were experienced pilots (Army & Navy) along with veteran Army units.
The vast majority of Kamikaze pilots that were attacking Okinawa and other targets from southern Japan in '45, were young volunteers that had little more than enough training to get their aircraft in the air and keep it level.