The one thing I've never seen in a ladder is a historical matchup vs same plane. I'd like to see a historical setup (sometime, somewhere) something like this....
109E vs SpitI
F4F vs A6Ma2
F4U-D vs Ki-84
P47D11 vs 190a5
p-38g vs 109G6
I just picked 5 that I believe are historical mainstays (feel free to correct me). Each set would be best of 3 with "choice" rotating if needed (if tied after each flies both). This would be a much better test of skills is some ways as well as being a closer fit to the historic "realities"....