I have tried both OS Elementary Luna, and the latest Xubuntu (14.04 as if this writing). Xubuntu seems okay, but it still has the dreaded COMPIZ bug. If you get it, you can still move the mouse, but window bars disappear. Xubuntu has had the Compiz bug since Maverick Meercat (version 10.10).
Voyager (Xubuntu-based French Linux Distro)
I have tried Voyager. This also has the compix bug. So I re-installed OS Elementary, which has its own window manager, Gala, not Compiz or Metacity, which you would have to use on Xubuntu.