I am curious to know what Web Developers/Designers/Masters prefered Operating System is?

MacOS, Windows, Linux, or Other (Can't think of any at the moment)

Edit =)
If it is other, could you specify what OS and maybe why?

ticked them all just because I can

I would think most designers don't care, they just edit, design, upload and such on the site. I'd imagine most don't have a say in what the site is actually on, they're only told what it is so they know what works, what doesn't, etc.

Not just coding but Graphic Design as well... As all of them go hand in hand when you a small company/agency.

btw, what the hell do you hope to get from asking such a question on linuxquestions.org anyway, do you think there's a chance anything but linux could win?

I personally prefered Linux with a KDE desktop because of the simple integration and deployment to the web from my desktop. Using Kate, combined with other valuable software tools I could easily access my server as though it was local, save files and immidietly see my changes. On top of that, I could easily deploy a test environment which mirrors the production environment. Linux is a powerhouse, and in a development environment that's what you want. CLI scripting in perl, php, and others is so much easier when it's all in its native environment.

Everything I've discussed is possible in, say, Windows or anyother OS, however, the modularity of Linux and thus its customizable nature produces an environment taylored to an individual. Customization = increased productivity.

Stability is another important factor. I can't tell you how many times I've been designing in windows, and I have my typical 20+ windows open. When I go to upload my changes, inevitably it will crash and my site will then be left with 1/2 a shopping cart script etc... Linux on the other hand is stable and reliable. Secure communication between server and development host is simple through sftp:// in KDE, and I can trust that I won't lose my hours of work due to a flakey system.

Also, as with most people, I am not a milionaire, so the ability to find quality applications for low prices and from a great community is a major plus.

That's my $0.02
Mike.

If you're looking for hosting a webserver, it's Linux by far. Looking to edit digital media? Macintosh. Looking for simplicity in creating your page? Windows (Dreamweaver).
I'm ticking them all...