buying new TV: SONY, LG or Samsung? (2016 models)

Hi,

I have been looking at getting a new TV and I have settled on a SONY KD49X8000D. I will be using Plex a lot so I thought I'd ask if there is any problems with this

I am running a Plex server through FreeNAS(probably switching to unRAID soon) and I with be running optical out to a 5.1 receiver

I was also looking at
Samsung UA49KU7000
LG 55UH652T (extra size don't really matter)

So is the Sony going to give me the best Plex experience or am I better off with the Samsung or LG?

Thnks