Imagine it. You decide to fire up Dogfight for a few games. Get some kills and make those stats look a little bit nicer.
Then you get the tough choice of picking your plane. Do you go with:
The one that spins on its tail?
The one that spins on its tail?
The one that spits 50 rounds a second?
Or the one thats faster than a Ferrari?
Tough choices. Just imagine if everyone had the same plane.
Not only would it be boring, but players might actually need to use skill instead of relying on superior aircraft.
A scary thought.