Yak is fly-by-wire plane for me..
Probably most horrifying planes for me to control are spitfire and P38
With spitfire, rudder input is too strong (ads (tm) rudders)
With P38 I get nose stuttering when pulling steady..
Can't really shoot when aim bounces over and under the plane in deflection shots, instead of following it steady like with other planes...
109's arent that big of a problem though.. just stiff controls (actually I like stiff control, makes it easier to aim.. 13 cannon shells = kill)