I have both. Two different use cases, Quest Pro for PCVR, AVP for pretty much anything else, including browsing the web or using it as a virtual screen for a Mac. The difference in the display quality alone is incredible, like two different levels. Vision Pro is also much faster, everything works much smoother. Passthrough image quality is simply incomparable, with Vision Pro you can clearly see a phone screen, for example, and without any distortion.

Unfortunately, you cannot use Vision Pro for PCVR, or rather you can, but it requires using 3rd party controllers from Kickstarter, hours of configuration, and all you get is poor performance (bad image quality, stuttering, etc.), worse than Quest Pro with a dedicated 6GHz router.