Which is the best OS?

[Severance]

Xoj said:
linux ubuntu.

it's fast, it doesn't eat resource and stable.

it can do everythign windows 7 except direct x 10 games
yes it can do direct x 9 games :p

actually it does

http://ubuntu-blog.com/how-to-install-directx-10-on-ubuntu

i tried it and it works fine