I'm a huge Apple fan. Oddly, the only product from Cupertino I don't use is their most popular ever - the iPhone. Apple's design philosophy has set the standard across all product lines. They've built quite a compelling ecosystem and successfully leveraged their many products.

Philosophically I do love the concept of open source. But in the real world I've always had the best user experience with proprietary/closed systems. Mac OSX, Microsoft Windows and the Office Suite, etc. They simply kick the crap out of Linux and Open Office.