I'm not talkin super-computer graphics. I'm talkin about consumer stuff.
But hey! Think what you will. It's still a free country![]()
But Unix != OS X.
I've done professional design work on Macs and Windows in a production environment and I've supported designers for prepress and design work, and I can tell you without any fear of contradiction that Windows gets its ass handed to it.
Yes, you can do mom-n-pop type design stuff on either platform just fine, but if you need decent postscript support or font management that doesn't go wonky every 20 minutes or color matching that actually works, then you're not going to go with Windows.
The design industry has standardized around Macs (don't believe it? Go pick up an industry magazine and look what design firms are using.) That means a lot of design software is either Mac-first or Mac-only. (And no, I'm not talking about Photoshop... but I am talking about Photoshop plug-ins and various other bits of design and production software written to work with Photoshop.) I've dealt with RIP systems that are OS X-only and design content systems that are Mac-preferred. In a month, I will be overseeing the installation of a RIP system that is Mac-only.
There's just no basis for claiming Windows is the preferred platform for graphic design work, either small or large scale.