What desktop environment do you use?
I'm curious what users out here who are using Linux in the classroom are doing about the many choices of desktop environments that are available. I had banked on using XFCE when/if we roll out more Ubuntu desktops, but I ran into a few snags. Using XFCE 4.8 on Ubuntu 11.04 has given me a little more food for thought. I like XFCE a lot, but I keep running into random bugs. Sometimes my system freezes, other times my mouse just locks up, and now and then my icons in my taskbar turn to white squares and nothing works, including the log out/shut down applet. I just get errors until I do a hard reboot.
KDE - I love KDE, but no thanks. I just don't feel it's stable enough to be in a production environment. It's magnitude of plasma widgets and stuff may look pretty, but I feel as though it is way too much for what I need and just isn't a good fit. Don't get me wrong, I love it, I'm just not feeling it as the main desktop environment in our scenario.
Gnome - Old faithful, but changing quite a bit. Unity is a terrific option and has served me so well it's hard to look away from it. However, Unity is new. Very new. This is scary... I'd rather choose something simpler and yet very effective to use that's been around for a while before I tinker with Unity. At the same token, I've had so few issues with Unity, it really does make me wonder if I should give it a try.
XFCE - As stated above, it works very well, but has given me some issues. Perhaps it just hates my CR-48 Google laptop? I don't know... but so far I'm not 100% convinced over it.
Any additional thoughts?