Luke's 4 Air to Air victories occur within one month. Now this does not compare to Voss's 12 during
bloody april but then Luke was fighting D7s. I don't think he was a slouch in the flying "skills" department. Shooting down 2 D7s in one dogfight is a feat. However I don't think anyone was trying to compare these two in air combat ability. Just aggresiveness.
I do however, think
Frank Luke ranks up there with other nations "big" aces. This is coming from a Canadian. I don't see any reason he should not be talked about in the same sentences as Barker, Voss, Fonck, or Ball.