Try Canonical Unity. I never liked Gnome, while I was OK with GTK programs. Then with Unity, I'm pretty fine. It has good defaults. I was a KDE user since version 2, loved 3, but I faced annoying bugs, even with the latest 4 releases (like systray icons leaking memory, every KDE upgrade disabling Oxygen theme, icon-only taskbar freeze issues, etc). Then, after Ubuntu started this own shell, I gave a chance in 12.04, which was fine, and a way improved in 14.04. I.e., while some people left Ubuntu due change to Unity, I started to use it for this reason.