Let's put it another way. The Windows shop has to deal with a critical failure almost every day. I'm talking about a failure which impacts company productivity.
The same thing happens in the Unix shop about once per year.
Both shops being otherwise equal... same number of servers, admins, etc, which would you rather support?
You can play with number all you want, but you can't bury the fact that Unix is far more reliable than Windows.
why do you have a window server then if productivity is so important and they are crashing everyday* on you.
*note:your crashes have went from every other day to everyday just in this thread. someone needs to stop the bleeding.