The La7, Typhoon, and Nik2 are over-tated???
Hmm. They are not some of the first planes to be grabbed even by the "l337" for nothing. The Typhoon is the "hardest" plane of those three to learn, but once the strong points are learned and they are taken advantage of, the Typhoon is a devsitating plane.
The Nik and La7 are not oever-rated. In fact, I think they are under-rated just like the Spit16.
The most over-rated plane in the game is the Spit14. It is not unlike any other Spit until it gets to 18k ('cept a better climb rate and dual .50cal instead of quad .30cal MG's). But for some reason it is PERKED and the Spit16 is not. The P51D is another plane that is over-rated. It is not a plane one can just hop into and fly like the La7, Spit16, or Nik2. The P51D takes time to learn.