The resolution on the Quest is better too, and when I really need my gaming PC for some VR title I can always use link with it.
The Quest has a lot of cool titles on it, though I'd be lying if I didn't admit that most of the time it's a Beat Saber machine for me. Beat Saber is fantastic.
For PC-backed graphics and exclusives, you can use Virtual Desktop with the sideloaded unlock to do wireless streaming or use Link for a hardwired experience.
The Rift has better quality screens and optics, but the Quest has a higher FoV and I find that ultimately wins out for overall experience.
The hand tracking stuff is very cool, extremely well done, and a bunch of stuff is coming down the pipe for it right now. It's supposed to come to the Rift too, but for now Quest has the advantage there.
I will probably end up selling my Rift at some point. I got the value of playing Alyx at full quality, but don't consider the minor IQ loss with streaming to the Quest to be that much of a blocker. I can do everything with the Quest, so it's the system for me.
Being able to use it anywhere in the house and without a cable just make it a much better experience.
Also when you do use it with a PC the guardian setup process is more reliable and less error prone than having to set up external PC sensors.
Quest is front heavy and Rift S is much more comfortable.
Screen on Quest has better blacks due to OLED. Rift S screen is much sharper but due to the LCD dark scenes looks a bit washed out.
Very much looking forward to the unified headset that supports both standalone and wireless PC connection, that is surely coming next year or 2022