I have RF7 transmitter interface version, so I'm using it with one of my old JR 11Xs since I'm using the XG11 for flying these days. I've always been impressed with the user interface, physics, and adjustability of the model parameters in Real Flight. The AJ Spark Evo II edited makes a wonderful flying airplane. I almost bought AeroFly as I loved it when I had it before, but living in Champaign next door to Hobbico, RF7 was the more convenient choice.

I will probably get AF7 when I move home because I do love that simulator and the variety of models that it offers.
Phoenix simulator flat out sucks. Everything about it is bad. I can't see how anybody flies it. For helicopters, it's not terrible, but it's the worst airplane simulator I've ever flown.