Choosing the right TV Media Centre

Okay, I need some advice.

I am currently using the TVIX 3D S2 and I am very happy.

But I need to purchase a new media centre, unfortunately TVIX 3D S2 is no longer available.

I am confused between the these 3 options:

1. KDLINKS HD720 Extreme FULL HD 1080P 3D Media Player
2. Dune HD Base 3D Network Media Player
3. Asus O!Play TV Pro

I will mostly use it to watch media from my a 4Tb HD that I plan to insert in these Media players and connect it with my TV via HDMI cables.

Which is the best option out of the 3 listed? Is there a better option that I am not aware off? Also is there a TV Media Centre that supports 4K resolution?

Thanks for your help!