Folks,
While I feel your phone choice should not necessarily be driven by your desire for a good VR experience, it can certainly have an influence. IF you are already looking at these phones, that, they work well with Google Daydream View, or GearVR could well be a deciding factor. Of course you ALWAYS have the Google cardboard option, even with an iPhone, or Windows Phone, BUT your best VR (with a Phone) comes from Google Daydream and Gear VR. And the phones featured in the following blog are THE best one's to get for use with your Daydream or GearVR.
The best smartphones for a killer VR experience | VRHeads
Rich