I do not know the differences in the displays, but I can tell you that bigger is better. I first bought a 60" Sony xbr1 and said wow, this is huge! Of course, my last display was a 32". Got used to it. Now I have a 70" and bigger would still be better, but quality is really important. I went from a 20' in my bedroom, 16' x16' to a 46". 50" would have been even better. If I did not have so many light issues in my den, I would put in a projector, even bigger. Hope I helped.
BMW