Help deciding what media player/streamer to buy

Hello Guys,

I want a media player that could play most video and audio formats and also have great subtitle support. And it should be able to play files from my local network with no hassle.
I would be using it the first months with an LG Plasma 1080p but plan to buy a 4k display in the future.
Right now I have a Pioneer VSX-1120K that is working great

I'm looking at:

Zidoo Z9S
HiMedia Q10 Pro
Nvidia Shield

The cheapest one that could do what I want would be ok.
Please let me know your advice. I'm open to other options.