I've got two LGs. One is ~ 10 years old. Its an original 42 flat panel TV that weights about 75 lbs. It probably costs me more in power than buying a new one would.
I bought a Samsung to replace it, and moved it into the basement. The month the warranty expired, the samsung's panel went out. Googling it, I learned that his was a common problem. So I wrote the President of Samsung US a letter with a copy of the invoice and several YouTube links to people having the same problem. A short while later, a woman called me to find out where to ship a refurbished unit. It is now in my bedroom. But I had already bought the LG.
Kudos to Samsung for sending me a new one. And kudos to LG for lasting. I do have to say the Samsung has a brighter picture (its led) but the LG, who are both plasma, have better coloring. However, unless really concentrating, there isn't a lot of difference. Just one other note, I do remember having a convo (perhaps on this board) who said he did purchasing for a major hotel chain. And that their research showed the LG's to be the most reliable so they bought thousands of them for hotel rooms.