I have X-Plane 10. While there's lots of high-brow intellectual debate over which sim is more accurate, I was never that impressed with how X-Plane flew. The old MSFS flight models aren't as complex as XP (the new one is much, much more complex), but they produced a decent facsimile of aerodynamic flight, though maybe not so much for helicopters. However, third-party developers managed to get around the limitations of MSFS/P3D by effectively taking all the complex stuff offboard, and using the sim as essentially a method of displaying the results in a graphical format that you could understand as flight. FS20's aerodynamic modelling uses around 100 real-time data streams which, in theory, will make for a better aircraft feel - but I'm not that impressed so far with the result in the default aircraft. I suspect that is because Asobo (the developer) are not experienced pilots, but learned to fly as part of the development process and were over-aware of the dynamic environment, so the result is that the default aircraft are too twitchy - because that's how it feels to a new student pilot. I expect the third-party aircraft to be much better.
All that said, my interest is in the world environment, not the flying experience. I see these flight sims as analogous to a model railway, in that you create a complex moving simulation of a complete area. Hence my association with MAIW.
