It should be obvious based on my worship of Bill Joy, but with a number of postings on Windows I wanted to make it clear:
When it comes to web servers and production environments I always use *nix and would never consider using Windows to run my enterprise.
I’m very happy with Windows 7 as my desktop I just wouldn’t want to build my server rack using anything but some form of Unix. These days I favor the CentOS distribution. For years I was a BSD guy of course, then an AIX guy, then a Solaris guy, and these days I’m happy with CentOS Linux.