Cool. I hope around depending on what I'm doing.
For desktop I typically use Antergos or Debian, but I'm familiar with many. I switch around windows managers. I've used i3, kde plasma, gnome, cinnamon, you name it I've probably used it. But for Antergos I just use KDE plasma right now.
All of my support tools for customers only work on Windows, so I just use Windows 8.1 for that.