Depends on what "User friendly" means. I can't stand anything that's
not needed on my system. I can't use KDE for more than a few minutes
without getting frustrated at the number of options I'm given, and Gnome
is only slightly better. I use Fluxbox because it skips all the eye
candy that those WMs have and goes simplistic, which to me is much more
"user friendly" than anything else.