Been a while since I played with my Desktop. I've been having using GNOME for long now. Enlightenment is still something that I fancy and love; but GNOME is stable and cool. Simple too. Though I know a lot of you will say KDE is better; but this is an endless war. As for Window Managers I guess it depends on what you are looking for and what you are comfortable with. KDE is good; speed wise I guess it's faster then GNOME and QT library has improved over the years.
I've tested t E17 the new DR17; as always it's fun and fancy. My first experience with E was back in 1997 since then E has come a long way.