Beside the well written points of Harv I think the question from consumer side is which kind of content you wanna experience. And this depends on your interest. Both devices are well made. If you wanna play exclusives made for PSVR you will have to go with this system.But if VR is more than gaming for you then you should go with the Rift because you can expect it to be more social.
Reasons to believe:
PSVR and Vive are second screens gaming devices in their core.
Facebook is a social network. It´s DNA is communication. Gaming is just a door opener for them to attract people.
With Gear VR it is already possible to receive calls from FB messenger while in VR.
The handtracking of touch adds so much when it is about to communicate with other people.
You can link your oculus account with your facebook account (until now Ii have met enthusiasts of VR, but with hitting the mass market in the future I wanna drink with my best friends in VR, let´s have highballs for everyone!)
For me personally, human to human interaction means more than gaming in general but I have to say using touch to shoot zombies in Doom3 is mindblowing fun for me, too.