Panasonic 3D plasma displays generally get very good reviews. The passive sets don't fare so well. Spend a lot of time with all these sets and note how they compare. Any weaknesses you see in the showroom will only become more annoying when you get a set home. I have the 47" version of the LG LM7600 and I really like it. I also have a 64" Samsung 3D plasma display. Plasma will give you a better 2D image than the LG, but I prefer the LG for most 3D movies (although not all) because it's so much brighter, and the passive glasses are so much more comfortable and easy on the eyes than active glasses. Most people don't notice that half the screen is dark scan lines in most passive displays, and if you sit far enough away it won't likely bother you, either. I haven't seen that Panasonic, but I've directly compared LG and Vizio in stores, and the LGs look a lot better to me. You could do a lot worse. I'd watch the same material on both sets and see which I preferred. The extra "Smart TV" features don't amount to a hill of beans to me on my LM7600.