I know folk that like the other but in the circles and family here, that name has too many failures after a few years.
CNET has reviews on the panny's and my only suggestion is to get a 5 to 10 year warranty. If they don't sell such, they are sending you a clear message that I hope you can understand. Many folk over invest in these 5 year devices and are getting more than a little upset later.
Based on CNET reviews, I think I've narrowed down my choices. If costs were all the same (which they are pretty close), which would you choose?
Vizio E601i-A3 60"
Panasonic ST50 55"
Panasonic UT50 (or GT50) 60"