I've become quite the VR fan, to the point that I now own all 3 of the main headsets (PSVR, Rift, Vive).
Right now, I'm recommending that if you have a PS4/PS4Pro that you start with the PSVR. It's a good piece of kit for the price. It is still my favorite lens/screen despite being a bit lower res. The lack of fresnel lenses is a big part of this. The motion tracking is without question the inferior of the three. This can get you started in VR for the lowest entry price.
If you're not a console gamer and want a PC variant, then I am recommending the Rift. It has a lower price point. Has the better motion controllers (Touch). Has less screen door than the Vive. Has more comfort. Has native support for the Oculus store while also having support for essentially every SteamVR title. Last year I would not have recommended the Rift due to them not supporting Roomscale, but now they do. In my 3m x 4m space my Rift is indistinguishable from my Vive. Note that I did buy a 3rd sensor. Also, if you don't have a PC, there are often Rift+PC deals for around $1000, albeit it is a PC that is on the lowest end of the spectrum.
I am only recommending the Vive if you have a super large playspace or are Anti-Facebook/Oculus. Many people are. I do think the Vive has the most potential, given all of the mods, but my biggest concern is the lack of software that leverages the hardware. The Vive lighthouses are a better tracking solution, but there aren't any games that requires them. If they play the same on the Rift, for less money, then why? With a really large playspace the Rift may not hold up so well in the tracking. According to SteamVR data only a very very tiny portion of the community have such a large space. If you are sold on the Vive, it's still a great experience. I'm just making recommendations. Once the knuckles controllers come out, it'll be even better.
Also, I do think we will see another Lighthouse headset (From LG) before year's end or very early in 2018. The hardware has already been shown off months ago and looked basically commercial at that time. It appeared to be a big improvement over the Vive in terms of how the headset can flip-up from your face.
This fall we will also start seeing the release of the Microsoft affiliated headsets from Acer, Lenovo, Dell, HP, ect. This may disrupt the market.
All in all, the VR industry is still figuring things out. 6 months from now things could look different. If you are interested in VR, and want to jump in NOW, it’s why I recommend the PSVR/Rift as lower cost. The Vive is an investment, being the highest price point plus you will probably want the deluxe headstrap (+$100) and the knuckles controllers when released (unknown price), while staring down the release of the LG headset which may do it all for the same $800 (or less).
TL;DR – All headsets are good. Can’t go “wrong” with any of them. Do to upcoming hardware releases I recommend PSVR for console gamers, and Rift for PC gamers in order to keep cost down while we see how things look 6 months from now.