They both suck. Wayland had every opportunity to be desktops done right, but it ultimately doomed itself with poor design choices just like X11.
Call me when we have a third option.

Why can Wayland compositors still not match the cursor responsiveness and smoothness of Xorg? Even something as simple as navigating the GNOME shell on the newest version of OpenSUSE Leap causes it to skip. There was also that recently published article that showed a slight latency edge on Xorg with a slow-motion camera.