Baas

Im looking to buy a flight sim and it seems that MRC Reflex XTR and the new Aerofly Professional Deluxe are the best out there. I see that they both support photo-realistic scenery and both have been spoken highly of in forums. As I am in South Africa I only get one chance to order the product, because it takes weeks to arrive and I cant just take it back to the shop (in the USA) Can anyone compare the two products i.t.o realism, system requirements, training options etc?