I think whilst technology a little strapped, it has the potential to provide the best content.
Obviously PC has the advantage in terms of sheer amount of content, but Sony can spend twenty or thirty million dollars on a VR exclusive title, and no one will do that on PC. In the next few years, no one will do it as a third party producing a game for PS4 and PC either.
Every time we have something like this, the question is always "what's the killer app?", the same way having a console capable of 3D, and an analog, in of itself isn't valuable, Mario 64 is what mattered, and people just needed the box to play it.
The Rift, and Sony's thing, while providing a novel and enjoyable experience, need to have something that is truly impossible without them. Of course Half-Life 3 will be better with the Rift than without it, but Mario 64 has to come from somewhere, and only a company who are invested in the future of VR are going to do it. Maybe it'll be Oculus, but out of them and Sony, my money's on Sony.