The game is balanced. Everyone has equal access to all planes. They could introduce the F-86 Sabre into the planeset and it would still be balanced because everyone could fly the F-86 (or, assuming it would be perked, then everyone would have equal access to earn the perk points to get the F-86).
So don't sweat if one plane is better than another, or one GV is better than another, because everyone has an equal shot at getting to use it/them. The only limiter is pilot skill (which I don't have, and that's why I'm usually in a Spitfire, P-51D, Corsair, or Hellcat).