I've suggested the Ki-100 before. It's quite capable, but much of the plane's mystique is due to significant misinformation about the July 25, 1945 encounter between the Ki and Navy Hellcats. Initial claims by the Japanese were 12 F6F's downed for only two losses. Subsequent review indicates the losses were one each, and this was because of a collision.
The Ki-100 had great maneuverability, but IIRC it's best asset was the reliability of it's engine, something which means nothing in AH.