I have been a lucky participant in that event and my votes went exactly to Panasonic AX802 for 4K set and Panasonic ZT as best TV.
It would be useful to compare a true backlit LCD with the rest but the idea was to compare best 2014 models available in UK for sale.
All LCDs had uniformity issues, banding, DSE, black fluctuation, more or less which I believe had influence on results.
We have compared 4K Tears of Steel and 4K Netflix and yes there were a little more details visible but other picture attributes as contrast, blacks, colours were absolutely better on OLED and plasma and thanks to that I prefer watch it on these sets.
All tests were made with lights off, so only TVs emitted light. OLED was the most amazing with true blacks and amazing contrast. However comparing picture with ZT plasma, image was lacking significant amount of details. That might be true that LG was showing 2.4 gamma, when ZT probably not, but in my opinion the lost was too big. OLED had issues with clear motion, 3D is passive, ABL was quite aggressive, for me full whites were warmer than on ZT. And in that category only LCD obviously won.
Overall ZT was the most solid one: amazing deep solid blacks, amazing shadow details, clear motion, perfect uniformity.
I am owner of Samsung F8500 plasma and I can compare results to my set. It might not be objective but I think F8500 reproduce even better picture than ZT. Blacks might not be as good as ZT, but only by hair but F8500 reproduce true 2.4 gamma and thanks to that and higher brightness image is more OLED like.
Samsung PS64F8500, Anthem MRX 500, Dali Zensor 7.1, Apple TV 3, Sony BDPS790 Blu Ray, PS4, iDisplay Pro3, Calman 5