@Wash,
Sometimes I am biased.
I have used both Sony and Samsung LED TV and in my opinion the Sony had more vivid colors and was a clear winner in picture quality. It is a matter of personal preference.
I also have an older Sony TV bought 5 years ago which does not have the Internet bells and whistles but it works up to this day like a charm. Haven't had any issues with it so for it is also a matter of durability.
But I hear Samsung has some new gems in town, but haven't tried them out.