So then why do we hear of more FAA certified Sims with X-Plane rather than FSX? There obviously has to be some sort of advantage, flight model wise, that X-Plane has over FSX.
And now with MSFS out of the picture X-plane is going to be gobbling up new customers like there's no tomorrow. They are even developing programs to convert MSFS models (Aircraft AND Scenery!) for use in X-Plane.
Politics..