Limit consecutive kills of the same pilot to 3 in a certain time period for kills toward score in Fighter mode...still get the perks but have it set like proxies where you see "kills not counted toward score" on the score page.
And that would hurt some pilots. EX, I was fighting Violator in 109s one afternoon. Not much else going on and I figured it was a good opportunity to learn a thing or two against one of the better 109 sticks. I came back time after time, him killing me every time. So with his much better skill, all scoring stops for him because he killed more than 3 times in a row?
For everyway you can think up to make scoring seem more "fair", or even handed, the community will be able to post a half dozen ways it could be gamed, or have unintended results. The system in place is not perfect, but it IS the same for everyone. If you want to spend the time to tweak your score, you too can be on the leader board. If on the other hand you couldn't care less about the score board, it isn't going to hurt your game play by NOT tweaking your score.
AH has many ways to play the game, GVs, bombing, capturing bases, and yes, climbing the scoreboard.
As to see who is "the best of the best!" <----- name the movie the quote is from, that is not what the scores are for. If you want to see who is the best, challenge everyone. I know Im not the best, so I concede to your superior skill. See 1 down, just a few thousand more to go!