Brektzar makes a good point. I love my games as well. Unfortunately, most of my games are Windows only supported. It's so sad.
I have lots of love for Linux. I feel more at home with a CLI than anything else. There are so many distributions for anything that you could possibly want. Desktops, Servers, Security, Graphics, Old Hardware, Bleeding Edge, etc. My main usage is for servers and portable.
I'll be honest, not too happy about the newer Desktop Environments that are out.
Which do I prefer? Linux.
Favorite Distribution? It's a tie between Arch and Debian.
What do I use most excluding server uptime? Windows 7 (Because I'm a gamer, damn it)
Favorite Windows version? Windows 98, baby. Wewt.