New tv?

Well it looks like the not so old Samsung 50 inch plasma is on its last legs. It has a blue vertical band running down the left side and repair folks are telling me it is likely the display panel which cost as much or more than a new TV to repair. So what are you folks liking these days as the best TV for home theater? This is a set up with an oppo 103 and NAD integrated amp and Sonus fabar toy towers. We are looking for a 55 inch set and are wondering if plasma is still the best way to go? As always thanks for any suggestions.