Just adopted ( september 2012) LMDE-XFCE, after years on Ubuntu.

Love the following points :

- Semi-rolling aspect (allowing to get Debian-testing with improved stability/reliability at the cost of a small delay in deployment

- Debian base (dpkg/apr rocks)

- XFCE (light, simple)

Dislikes : number of orphan packages

Would love to see :

Choice between XFCE and Razor-QT (as soon as this last one is mature enough) as I'm an avid user of a lot of KDE apps (especially Digikam)