Keeping this discussion simple and unbiased, I do not own either of the two next-gen systems(Xbox One or PS4) and I would like to know the unique features for both. In the same way that the 3DS allows stereoscopic 3D or the Wii U has a controller with a tablet sized screen, what unique qualities does the PS4 or Xbox One have that no other console has?
Since it is my belief that a console needs to justify its existence with unique qualities and innovations, I would like to apply this mentality to the new next gen consoles.
In the past this mentality has proven worth while in determining the overall worth of a system. For example:
N64- Introduced the modern joystic
PS1- Introduced dual-joystics and clickable sticks as well
Dreamcast- Web Browser
Wii- Motion Control
and the list goes on...but you get my point.
SO what justifies the Xbox One and PS4's existence??