AFPD is way better than real flight for 3D, no contest. The physics arent even comparable from on to the other. Even the original AFP is WAY better than realflight. Realflight is ok when you need the plane to generally perform but if you need really accurate physics that will translate directly to a real scale 3D plane AFPD is awesome. I hear reflex is real good too, but supposedly it takes forever to load and you have limited plane and scene choices. And it cost over $200 just for the program, AFPD delivered with the connector to fit your transmitter is about $180.