From what I saw, the major difference between the Sony and Panasonic is the contrast ratio. Based on that, I'd go with the Panasonic. I'm not extremely knowledgeable, but while I was shopping around for LCD TVs, I was told multiple times that the contrast ratio is one of the most important things to note, as the higher the ratio, the better the image. In addition, the Panasonic is cheaper! Use the money you "save" to buy a mount!
