Time for my own opinion. First of all, let me be honest in admitting that I ordered a Panasonic Plasma TV and I am still to see how it pans out over a longer period of time. I was told that plasma is outdated technology and LED is the latest. But when I spent time looking at the performance of plasma and LCD, I felt plasma wasn't that bad. Though it may not match the brightness of LED. Also, plasma seems to be a lot cheaper than LED. So, if you are fine with a very good quality image for a decent price plasma may be better for you. But if you want to show off the TV performance, for LED. I was certainly not impressed with LCD.
For more technology reading: Plasma, LED, LCD