I have been using KDE instead of gnome. Simply because I like the graphics design of KDE more than that of gnome. But there is this one silly lacunae in KDE. It does not allow the user to shutdown without logging out. Shutting down the machine is therefore a two step process. You first log-out and then shutdown. This is silly.
Gnome gives you the shutdown/reboot options with log-off and you can do whatever you like.
No idea how to crack this. For now, I am just living with this two step process. But it bugs.