I will give a brief synopsis of the planes that I use to earn perk points. Notice I did not say "earn perk points in " One should not end a sentence in a preposition.
P-38J: I advise taking this plane over the P-38G for the superior view and more powerful engines. The P-38J makes a very good bomber interceptor and has a nice rate of climb. The head on attack abilities of this plane are top notch. Roll rate is average to horrible. Turning ability is average to good depending on flap usage.
P-47D11: This aircraft has a horrible rate of climb and poor views. Firepower is awesome and turn rate above 200mph is excellent. Set convergence for 250 to 300 yards and all that is needed to bring down an enemy aircraft is a tap of the trigger. Do not feel hesitate to engage any aircraft in a turning fight. The only exceptiong being the Spit5.
P-51B: This aircraft is extremely fast, has mediocre views, good turning ability, and good climb. Firepower is horrible. A close range sustained burst will bring down enemy aircraft. Use this plane to dive on La7s, Fw190Ds,P-51Ds and Bf-109g10s. In level flight below 10k it will easily chase down all aircraft with the exception of the above list. It is lighter than the P-51D by several hundred pounds so the best way to fly this plane is to get in a turning fight with late war high speed aircraft. BnZ better turning aircraft.
La-5: This aicraft has awesome climb, good turning ability, and poor guns. The cannons themselves are very lethal, but the rate of fire and the gunsight are awful. This aircraft has very good acceleration and can be used to chase down better turning planes. Sustained turn fights are possible, but deflection shooting is blind luck. Use this plane to out-accelerate and chase down heavy American and German aircraft. BnZ slow moving turn fighters. You must anticipate well in advance where the enemy aircraft will be due to the poor ballistics of the cannons.