Don't know about the unbiased Bat. The pilot is always a bigger factor than the plane. For example, if you wanted to test 190s or P38s or a Yak and you stuck me in one of those bathtubs , I would still be fighting them like a spitfire. My personal stile (and aim lol) would be messing with results for sure.
which is sort of why we're trying to show just how close to the egde these bathtubs can go. the 109k should easily dominate (not necessarily an easy kill) ki-84 with more appropriate tactics, even with a co-alt/e merge... same for some of the other matchups.
I fly all planes fairly similarly, pushing them when needed (and often when not, lol), because i've spent so much time on that edge, some planes do better than others, but all of them are capable of surprising you (generic).
This is the advantage AH provides us, the ability to practice, learn from our mistakes and fine tune our skills.