I own the vive and don't find it uncomfortable, you just need to make sure the strap is snug and secure.
Really, I'd be shocked if the PSVR isn't the most comfortable, though, as the other two (especially vive with room scaling) are packing a lot more into their headsets. I'm actually pretty curious as to why it's so heavy.
Edit: I don't want that to sound too negative as I'm really looking forward to the PSVR myself (I think this headset will be the one to really pioneer the multiplayer VR experience). Still, the PSVR SHOULD be the most comfortable; it'd be rather absurd for it not to be.







