I think people who stick to 1 particular type of fighting are the least to fear, they fly planes that are REALLY REALLY good at 1 thing.. speed, turning, or guns.. etc
and what kills them is the mentality that they go into the fight with.. "im in a good turn fighter, so thats what im going to do, turn fight" they have no other game plan beyond that, so if you refuse to fight their fight, they are lost..
the people (in the plane) to fear the most are the people who fly the fight, not the plane. they go into the fight with a game plan too, to kill you, and they know numerous ways to do this. With people like these there is no "your fight" or "their fight" just THE fight.
these people seem to gravitate more towards aircraft that have no 1 magic power, but that are useful all around, decent speed, turning, useful guns... they don't need 1 overwhelming superpower to be effective, they know what they can do, and what you CANNOT do, and will move forward along those lines until you are dead.