I'd like to put in a request...
Nakajima Ki-43 Hyabusa (Peregrine Falcon)
Allied code name: Oscar
Produced from December 1938 through the end of the war, with over 5,900 examples built. The most numerous of all IJAAF fighters, it served on every front where the IJAAF fought.
Most common variant was the Ki-43-II, with almost 2,500 made from November 1942 to October 1944. The guns were a bit light (2 x 12.7 mm Ho-103 machine guns), and at only 530 KPH @ 4KM (329 MPH @ 13,120 FT) it was mite slow, but with judicious use of its "butterfly flaps" it could out-dogfight anything, even a Zero.

(Drat! Can't get the image to display.)