All the "it's only the pilot" crap really gets old.
It's NOT. Folks that think it's ONLY the pilot must be a tad egotistical ("I and I alone did this, doesn't matter what I was flying, where we began the fight, that you were already ditched, etc...")
Aircraft have different capabilities, everybody knows this. However skilled the pilot is, the plane can handicap them or it can benefit them. You can put any old 2-weeker in a spit16 and they will get 5 kills before being killed. SA doesn't matter in a furball for them. They don't care if they die. Gunnery isn't an issue, as they can set convergence out to 600 and get 1-ping disable/kills with Hispanos.
I like to call it a multiplier. A spit16 has a very high skill multiplier. You can pull BS moves in this plane that no other plane can (essentially it is a crutch) and folks that ONLY fly the spit are not very capable in other rides. On the other hand you can take a very skilled pilot and put him in a spit16, and it still gives him all the benefits it gives other pilots, only this pilot doesn't NEED them. This pilot can also fly lesser craft equally as well.
Please note the pilot's skill is part of the equation, it is NOT the entire equation.
A pilot in a P-40B is not 1/20th as effective as he is in a spit16. Doesn't matter who he/she fights or how many or in which situation. The P-40B has a low multiplier (in this case it's a decimal, say 0.4 x <pilot_skill>) and can reduce the effect a pilot's skill has on the outcome of a fight.
Splitting hairs by saying "well if the ace is in the p-40b and the dweeb is in the spit16, the spit16 can't aim, has no SA, doesn't understand overshoots, etc etc" -- Splitting hairs won't ignore the fact that thsi P-40B is fubared and even a MORON in teh spit16 can out turn, out climb, out loop, out yoyo, out accelerate, out shoot, out fly the P-40B in every way shape and form based on the inherrent limitations of the aircraft itself.
And if you're still not convinced, put the ace in a C47 and the newbie in a spit16.
Saying "it's the pilot not the plane" may be nice for the real WW2 pilots that coined the phrase (?) and maybe applies in real life more than it ever will in this or any PC game. In Aces High it's just self-congratulating self-applauding egotism.
It's the same mentality as taking credit for bouncing the P-39D in a horde of 6-8 ENY5 planes, after the first 4 crash/auger trying to get him. I had this happen to me. I was the P-39D. The guy that got me took full credit for it. Me? I think none of them earned it. I didn't get an exact count but I believe an F6F and 2x spit16s augered just trying to get a shot on me (and I wasn't manuvering much, trying to run). The ones that crashed put more rounds into me than the guy that got the pilot kill, would have gotten the kill message if any had pulled up a hair sooner.