[cyko]

Obviously this isn't the place to debate the "better" server OS. However, I would like to add that I would chose linux over windows anyday. Call it a personal preference. At least linux doesn't give me the BSOD and get infected with virii so easliy. I'd also like to add that most spyware for those annoying popups aren't quite as effective on linux either.

As for server applications, in terms of stability, *nix beats windows hands down. It is just unfortunate that the hlds_l isn't coded as "nicely" (yes, I use that word loosely) as the hlds. However, the srcds looks very promising.