I've been using Xfce on everything since about 2010. It's my default on my Ubuntu and OpenBSD VMs/workstations. Xfce promotes a good deal of minimalist motifs,

I've been using Xfce on everything since about 2010. It's my default on my Ubuntu and OpenBSD VMs/workstations. Xfce promotes a good deal of minimalist motifs, which is nice. I found Gnome 2 and Unity quickly excessive with clutter.