There are problems with Gnome and GTK+, but what surprises me is that KDE and QT have managed to remain consistently, in the words of RMS, butt-ugly throughout the years. It's like a requirement for each new release to be at least as ugly as the last one. Even with plasma and fancy 3D effects, still that same ugly-mugly, kinda-boxy, badly spaced, wierdly rendered fonts, dumb controls, QT look. My love for gnome has dissipated markedly in the last few years with the gnome 3 disaster, but it is hard to imaging replacing it with, ugh, butt-ugly kde.
Or you could just use your Wii controllers with your pc using bluetooth. I love playing Assasin's Creed on the big tv, with surround sound, and my wii-controllers so I can jump around instead of being hunched over in front of the computer screen. Also works great for controlling your pc's media player like a remote control.