Which is the best OS?

[Zkuq]

Such limited options... But I guess I'll say say Ubuntu anyway, since the core isn't any different from any other Linux system.

That said, there are two reasons for sticking with Windows here: software support (especially games) and that my WLAN adapter isn't working too well in Linux, not without irritatingly much work at least. And while the latter could be fixed, don't forget that I have another reason as well.