Best looking desktop environment?
 

I heard Enlightenment is one of the best looking desktop envioronments.

And KDE can be very amazing if you install a rendering engine on it.

though i use enlightenment as my main desktop-environment i wouldn't say its outstanding good looking.
but one may do a lot of configuring, and it comes with some weird tools.
you may check it from Elive, OpenGeu, OzOs, Maryan and some other distros which use it as a desktop-environment.
While most of them are based on Ubuntu (with OpenGeu making the change to Debian atm), Elive is based on Debian. I for one would consider OpenGeu as the best looking of those. OzOs looks very nice too.

Waiting for Enlightenment 17 to try it out.

I have always found KDE to be hands over Gnome for eye candy, and I do like eye candy, but I do not like the new menu functionality nor the wasted energy for Akonadi. I ripped Akonadi out of my system.

I have always found XFCE to very pleasing to the eye, but in my experience it is still suffering growing pains. The first time I used it several years ago, under Slackware 10.2, it lost the wallpaper. Just a big black space where my pretty picture used to be.

I reinstalled, uninstalled and reinstalled, but could not get it to display wallpaper again. That's when I started using Fluxbox.

I have been using it again with Slackware 13.0 and it's still pretty, but just the other day the panel for my user login disappeared. It's there for root and for a test user I created, but no panel for user (the menu and everything else still works).

Frankly, for most daily computing, I use Fluxbox, but I have learned to configure it so that I find it very attractive. It doesn't have the fancy effects of a desktop environment, but it works for me.

That's 100% subjective. There's no response to that question. I suggest you to google a bit for linux desktop screenshots, and watch some videos in youtube. A good place for screenshots used to be lynucs.org, it seems to be dead for a very long time now, though.

No idea what are you talking about. Maybe you meant to install compiz under kde or enable desktop effects. You can see kde 4.x in action in youtube as well probably.

Mandriva looks pretty sweet.

Yeah Mandriva is a fantastic DE.