KDE 4.4 just came out, and Ubuntu 10.10 will be released with GNOME 3 (I think).
Right now I'm on GNOME (Ubuntu). I have been using my Ubuntu since Jaunty. Quite frankly, I'm getting bored as I've used-up all the available features I can find -- the reason why I left OS X (it's so boring in there compared to Ubuntu, honestly), and installed Ubuntu on 'this' MacBook.
I'm really looking forward to "GnomeShell" in GNOME 3, but it's still so far away. I'd actually tried Kubuntu when KDE 4 was just released; I thought it had more features than GNOME, looked prettier, but was totally unstable. But still, I prefer KDE in general, just not then. Now that it's in 4.4, want to try it in complete installation.
I've tried the Kubuntu Live but the experience is not the same as with full installation. And I don't like VirtualBox for the same reason. Also, I don't like disk partitions.
Back to my question: Should I install "kubuntu-desktop" on my Ubuntu to try out KDE 4.4? Should I install reinstall Kubuntu, completely wiping out my machine? Or is it not worth trying, thus I should wait for Ubuntu 10.10?