I soley voted Linux even though I duel boot with Windows.
Well... let's list off a bit:
Laptop: Ubuntu 14.04 LTS, Windows 7 Home Premium
Other Laptop: Ubuntu Server 13.10 (To be updated to 14.04 in the near-ish future)
Server: Ubuntu Server 14.04 LTS
These, although not the only computers in my home, are the ones I use on a daily basis excluding school computers. The server isn't even in my home, it's at a friend's house.
EDIT: I see you made a remake of this topic. I remember making one, oh way back when. Nostalgia~!