Personally i believe if there was a more powerfull unified 3D library for linux (y'know like say DirectX) a simple Gammers Distro with this would blow the crap outa windows! any day of the week...
i have three personal favourite flavours of linux
1. Slackware Linux
I would love to see a gammers edition, with all the top notch gfx cards natively supported as well as a spanking 3D graphics support (OpenGL can only do somuch!)