HTC Vive is without a doubt the best vr headset. It can do anything the rift can do, but the rift cannot do everything the Vive can do.

I'd go with the rift if I was you.

Wait till there is something meaningful to play on any headset

The rift is your best bet, but you have to have a really good computer. Look at the requirements for it before you decide. I wouldn't even bother with the oculus. And the ps vr is pretty kool and decently priced. And the ps vr worked on pretty much everything it just won't be in vr.