youre right about that, for sure, as a newb the K4 is much tougher to do well in and the majority go for something less taxing.
my point is that when you get experience, the choice of plane matters very little. you will beat spits in all kinds of planes. and when you get to this level, the 109K4 is extremely easy to control the fight vs any other plane in the game. reapeat: only when flown with the respect and experience it requires.