My much smaller list, narrowed down to what in reality I can see us getting, and to what I feel we need...
Japan-
D4Y 'Judy'. May be an interesting dive bomber.
Russia-
Pe-2! Would be an AWESOME quick-strike bomber.
Britain-
Mossies!
Maybe Swordfish.
United States-
P-39 Airacobra. We NEED this plane. It and the La-5/7 were the principle fighters of the Russian airforce.
Excerpt from "The Blond Knight of Germany"-
'Over Russia the call "Airacobra!" was heard and dreaded by the Luftwaffe because the Soviets equipped a group made up of the best fighter aces with this type of aircraft. They painted their airplanes red and called themselves "Red Guards," and they accounted well for themselves. Hartmann, as is evident from his No.1 logbook, shot down eighteen Airacobras up to 29 October 1943. He estimates another fifteen fell to his guns before the war ended.'
Germany-
Ju-52. This plane was a workhorse for the Germans. And its armament, although light, would at least give goons a chance.
He-111. A cool plane and an important part of the Battle of Britain.
Ju-87 D-5 or G. Our current Stuka is useless once its bombs are dropped.
Me-262 A-2. Come on, how cool would an Me 262 be with bombs?
