Actually, if I remember right from the Prophecy manual (Or somewhere else, I don't remember really) earlier aces did have higher kill counts because the Kilrathi they fought earlier on had crappier ships and were not as good at flying as the Kilrathi later on.Originally posted by Arcadian15
Blair being the 12th ace is explained somewhere in one of the supplemental books with the games. I can't quite remember which one,(maybe the one with that came with Kilrathi Saga) but he's only considered 12th because of the aces who were in the earliest days of the war were flying in crappy ships (compared to what blair flew with for most of his career) and had a higher chance of death.