Linux Mint - home
openSUSE - work
Xubuntu - mobile
and SecurityOnion

Everyone dual boots to a different windows except work which is a soft client for 8 different spins

I'm using the following:

Asus Laptop running Ubuntu 13.04

My Desktop was running Debian, Linux Mint 12-13, Ubuntu 12.04-12.10, and Windows 7 back when I was trying Linux out for the first time in a number of years. I started out using Knoppix and BSDeviant (a UnixPunx made variation of BSD (obviously)) when I was experimenting with alternative OSes in secondary school.

Currently, I am just using 7 on my Desktop till I get my new hardware updated in the fall (new mobo, cpu, and ram) along with an SSD that I picked up on sale at New Egg. :) I mostly use Ubuntu for ease of convenience though I am considering giving Arch a try sometime when I get motivated enough to do so. :)

+1
Ubuntu 12.04 on main desktop and Linux Mint 13 on netbook.

Regards!

2x Xubuntu 12.04 and one Ubuntu Server 12.04 here :)

Gentoo user here. Although I used Gentoo on the desktop for a few years, it's now been relegated as my server OS, and I currently use Windows on the desktop. I don't need much out of a desktop (web browser, SSH client, video games), so Windows fits the bill, and I'd rather just use that than bother going through the pain of getting my Windows-based games to work via WINE.

Arch Linux would also be one of my close favorites, since it combines minimalism with ease-of-use, so for me it makes both a great desktop and server distro. It's my favorite distro to setup on laptops.

Slackware is also another distro I'm quite fond of. I've fallen out of using it for the desktop because initially getting it setup the way I like (eg, rebuilding `shadow' with PAM support, building/installing tonnes of non-standard software) is something I don't really want to bother with anymore. But I would consider it on a server, because setting up services like FTP/SMTP/Samba/etc. would not present much fuss, and the complete control and lack-of-complexity would be a boon.

And if I want to just want an easy-to-use, pretty-much-no-setup distro, I'll just use Ubuntu or Fedora, I guess. And maybe Debian on servers if I get tired of managing my Gentoo box.

Ubuntu 13.04 user and 12.04 (one on laptop, other on desktop), although i too use windows for games... and for visual studio for academy purposes (unfortunately)

Xubuntu 12.04 on laptop here!

Linux Mint 15 "Olivia" is so much more stable than 14. I am impressed with the quality on this release... full html5 integration. better driver support and they moved to a newer kernel which supports my wifi adapters so im gitty as hell right now...

I love openSUSE to death but, Mint has everything i want in an OS and interface, compatibility, support, aptitude (zypper is nice but blah) and its so much easier to manage packages (its just more compatible)

I'm curently migrating my systems (servers, laptop and workstations) from Ubuntu to Debian. Debian Wheezy has a strange default package-selection (no screen, rsync, etc...), but it's fast and rock-solid as ever.

Ubuntu (latest);
Debian (stable).

Off and on Ubuntu user. If enough of my games were linux compatible I would joyously switch full time, but after monkeying around with settings, I inevitably revert to Windows every time after a variable number of days. Then after a new release or two, I switch back and try again.

Started with RedHat 6.0 back in '99 after I saw it being used as a server while in high-school. Then I used SuSE (for a very short time), Mandrake and settled on Ubuntu. I'm getting old :/ Gotta keep Windows around for running some special software and the occasional game that I can't run on Linux (like Bioshock Infinite)

I use Kubuntu,Xubuntu and Linux Mint (just upgraded to 15)