I think Skurj is talking about the tendency for the plane to roll, which affects the easy of turning especially at low speeds. Like for the C.205, I find it easier to turn to the left because, the torque from the engine makes the plane snap and tilt to the left. I believe this is true for most planes like the N1K2, Spits, La5, Ki-61,... actually I haven't found a plane that turns better to the right... yet!