Panasonic 50 gt50
panasonic 55 st50
I would go for the Paasonic 55ST50 based on its stellar and premium performance. And it has the best black levels.
LG 65E6V OLED 4K TV, Samsung k8500 4K blu Ray player, Pioneer Sc-lx81 amp, B&W FPM series & B&W PV1 sub. iPhone 4s & iPad Pro.
Just bought 55HX853, VERY happy