Subject says it all. I heard linux is better but im interested why. Thank you.

PS if u find it easier to put a link that contains an explanation it will do just fine.

Well... it's not. Both Linux and Windows are stable enough and depending of your skills, both can be equally secure. Out of the box, Linux is more secure though. The only real advantage I can think about is that with Linux, you won't need to reboot the system when applying patches/security updates (if you are not upgrading your kernel, of course). Another good thing is that you can run Linux in command-line mode only, thus saving resources for other crucial operations, as running the server itself.

If you don't care about uptimes (and in a game server it's not all important as it should be with a Online store, for example) and want to install things by double-clicking and/or lack Unix administration skills, Windows is fine. If you do, need a server with higher uptimes, less hardware demanding and low costs and has the skills/willing to learn Unix/Linux, than Linux is the way to go...

EDIT:

By the way, I just saw that this is your first message here. Welcome to LQ.org

well, linux is free (mostly) which i guess could be "better", but other than that i dont see anything _better_ about it. i use windows xp to run a machine as a super nintendo and when i tried it with linux it was slower. the gui thing, i guess is true, but you can shell windows, or run classic mode, which imho looks better than that luna crap anyway.

but yeah, linux isnt _better_ in any distinct way. it just works better for some people.

thank you.