I know that GV's aren't the main focus of AH, but again, thats not the point. The point is that you're saying "this is most needed right now because of its historical significance" when just about every EW GV we don't have actually had more historical significance.
Again, you want the Ki-43? Fine. But don't expect me to let you get away with the lie.
Butcher, again, not the point. Aircraft couldn't have won the war, because aircraft couldn't have taken all the islands away from the Japanese. Really, all WWII aircraft's worth simply boils down to how it can help the ground troops. I can't think of one single conventional weapons-carrying aircraft that doesn't follow this rule.
Bombers: attack enemy infrastructure and weaken morale, so your ground troops have an easier time of it
Ground Attack Planes: directly support a ground attack, or hit other targets that could otherwise delay the ground troops
Fighters: stop enemy bombers and ground attack planes
Transports: move ground troops and stuff FOR the ground troops to where it needs to go
Recon planes: gather intelegence and reconosance thats usefull to the ground troops, or other support weapons.
Really, only a nuclear armed aircraft has the potential to end a war without need of ground troops. But in WWII (the main focus of this game) they were limited by range. Range had to be extended by ground troops going out and taking land away from the enemy, so the aircraft could take off from further forward and reach their target.