Windows 7 or 8? Links?

Just wondering what the majority thouhgt was the better OS, both for gaming and general computer use, as I'm planning on creating a new build soon.

Also, does anybody have any links for either OS. Just cause I don't wanna download a dodgy link off the web.

windows 7 definitely, don't have any links for either but I think it's generally a better idea to just buy them, i've heard that people have problems trying to find decent torrents for them

I have windows 7 on my main rig for gaming and ubuntu 12.10 on my laptop for general use and I like them both infinitely more than windows 8