I have the a77 and the NEX7. The image quality differences are a non event. I'm sure someone will "prove" there's a difference with endless shots of brick walls and cats. But I've now done 24 inch prints from both and fail to see any appreciable difference at the sensor level. Lenses are another matter. I do wonder if any 3200 owner is ever going to buy a lens that can resolve anywhere near that sensor.