Its ironic that today, along with this thread, we have a thread from a new owner of a Canon 5D mark II. He's having difficulty telling the difference between that FF camera and the couple's other camera an Kx also
I've no doubt in time, that they will be able pixel peep enough to see a difference.
I think we've reached a point with DSLR technology where its difficult for anybody but enthusiasts and pros to tell the difference between aps and FF prints, much less between prints of different classes/mfr of aps cameras.
EXCEPT with the tangible difference of low light shooting at 3200 iso and above. so i think we all, including me, need to get a little perspective and realize that the photographic skill behind the camera is a lot more important these days than the camera.