Honestly, if you go back and look at the movie Battle of Britain, you would think that the Luftwaffe only had the Bf109, the Ju87 and the He111 while the RAF only had Spitfires...
I understand it was "only a movie", but the BoB had such a wide variety of aircraft that sticking to only one type or the other kind of kills the atmosphere. (Kind of like in Flyboys where all the German aircraft were red DR.Is)