Which GNU/Linux distro does /prog/ use?

I'll go first.

Ubuntu is easy and has a lot of packages.
Arch is good if you want a lot of control over your system. This is what I currently use.
Fedora is good for ENTERPRISE systems.

LFS, while Mistress whips and/or sodomizes me, generally while having me wear a leash, collar, girly clothes and make-up. (I avoid getting urinated on while using LFS as it might cause issues with the electronics. A shame, really.)