Linux distributions + Gentoo >
In early 2013, Ubuntu, Red Hat (Fedora), Arch Linux and anything GNOME-related fell from my grace due to fundamental technology (e.g. systemd) or political issues (being evil).
I've been looking at some other distributions, particularly Gentoo-derived distributions.. but not Gentoo itself, since it's insane. Funtoo and Sabayon came up, and since Funtoo requires more free drive space than I have at the moment I checked out Sabayon.
2016-04-18 - Yeah, well.. since Gentoo now uses systemd, all it's sub-distributions will be dragged into the pit with it.
BSD > BSD distributions >
DragonFly BSD has been on my radar for a very long time now.
Unfortunately, I haven't had any success with it.