I have just had good luck with Sony's in General, Started out with the 50" WXRD, moved to the XBR4 52inch which I just gave away yesterday, currently have 3, a 1080P in the bedroom, an XBR65X850C for my game room and a XBR65X900E above the fireplace. Was going to get a 55in for my game room, but my dealer gave me the 65" for about $500 less then they sell @ Best Buy, so no brainer.
Black Levels have come along way, especially with the 850C and now even more so with the 900E for LCD screens. Off angle viewing is not the best, but the color on these sets is the biggest improvement. I know I can not tell the difference in resolution 1080p vs 4K above my fireplace, I sit too far. What I do notice is the color, HDR is the real deal in the newer sets.