[Blind-sysadmins] PHP on Windows Server: performance and research findings ...

Hello all, As the subject implies, what experience do you guys have running PHP on Windows as oppose to that on linux? I've heard different things; some say Windows is better, while others say that they can't get the newest versions of PHP working on Windows because the nice installer's disappeared, hence causing many more mistake avenues. I'm running several community sites(along with a few business ones) with a friend of mine, and he won't have mission critical PHP applications running on Windows stating "catastrophic" things happening. The problem? He can't state any examples. Bias, do you think?