I'm a VR enthusiast, and I have used the Oculus Rift, the HTC Vive, The Lenovo Explorer, and now the Samsung Odyssey. I'm a glasses wearer, and need corrective lenses to be able to use vr, so this is based on that variable.
The Rift was the worst of my experiences as my glasses wouldn't even come close to fitting, and setup of the system was a pain, it takes a third sensor to track like the vive and portability was even worse to show others vr. The god rays were awful and screen door affect was pretty obvious, and without glasses the sweet spot was tiny.
The Vive was great, perfect tracking and definitely a premium system, but customer support is a pain, and if you play a game that makes you sweat, the vive is susceptible to easily breaking with sweat and that's not covered under warranty and is a $250 repair. God rays were minimal though, large sweet spot, still pretty noticeable screen door affect, but my glasses fit.
The Lenovo Explorer is a fantastic cheap mixed reality vr. While the sweet spot was quite small and screen door affect was quite obvious, it's the most comfortable of all of them and super portable. My glasses fit easily and god rays are hardly there, plus it's easily portable.
And finally, the Samsung... Quite comfy, god rays are gone, screen door affect is nearly non existent, large sweet spot, but the display, absolutely the best! The Samsung makes me feel like I'm experiencing vr for the first time again it's quite amazing.
Final thoughts, all four boast an fov of 110, but the Samsung fov feels larger, not like looking through binoculars, plus the built-in headphones and microphone are great. For reference, I would say the vive tracking is 100% out of the box, but I would say the Samsung is 90%, so still really good for not needing base stations or light houses. I would say this is the best overall vr currently on the market.