My Vizio for starters...Sam's club. No clouding, wider viewing angle, natural colors and it has an adjustable backlight too.
The LN750 I mentioned would be a wiser choice in a 52".....which the OP was looking for. It's 240hz (if one must) seperate adjustable dejudder and motion.. all that jazz. You can save yourself 600-800 bucks and get a display that looks good and acts good too.
Don't get me wrong, the LED has better blacks than the traditional LCDs but that is the
ONLY upside. If one was so worried about the black levels, I would suggest a plasma.
I don't see where your suggestions or opinions are any better than mine. You dismissed my suggestion like I didn't know wtf I was talking about. If you are happy with your LED...good for you. I ain't buying into the whole LED hype just yet.