what Allied aircraft are the best in this game?

[IceFire]

The FW190 is a top notch fighter but it does have some excellent contemporaries...

FW190A-4 vs

La-5 (at low alts)
Yak-9 or Yak-1B (at low alts)
Spitfire F.IX (or on the outside a LF.Vb model with clipped wings at low alt)

FW190A-5 vs

Similar to the list above... add P-47D-22 and Yak-9T

FW190A-9 vs

Tempest Mark V
Spitfire LF.IX
P-51D
P-47D-27
Yak-9U
La-5FN or La-7


Lots of different techniques to fight the FW190 on a variety of terms but most of those can hold their own if flown to their full abilities. The Yak-1B or Yak-9 series are better counters than most give credit for... they may be typically slower but they can follow the FW190 through many evasion techniques on account of similarly impressive roll rate. Spitfires listed are nearly as fast, great climb rates, but usually not enough roll rate... the clipped wings do help mind you.

The Tempest is the best RAF counter to the FW190 and perhaps the best pound for pound contemporary. Similarly fast, well armed, etc. The Typhoon in many ways is a good counter but didn't quite have the roll rate (having one of the worst roll rates of any European theatre fighter) or turn rate but it did have the speed which most types didn't. Too bad we don't have it yet...