I use Arch Linux on my laptop and debian on my desktop. I'm currently working towards setting up a server on my desktop, just need to figure out where to start and what I want in it. I personally love Arch for it's repos as it's all there at my fingertips if I want to download them.
In terms of DE/WM I use qtile on arch and cinnamon on debian. I don't know what I'd do without qtile lol not sure if I'd ever switch it as my main WM.
Thanks for the interesting info! It was definitely a missed opportunity by Konami considering how big Guitar Hero was.