Wow, that could either be a troll question or a serious plea. Hard to tell.
My full answer is available at the link in my signature. But the short answer is that Linux is much less frustrating than Windows.
I just started a job where I have to use Windows. Everything else about the job is great, but I had kind of forgotten why I disliked working with Windows so much. Now I'm getting a refresher.
Here's another thing I'm going to add to my site: keyboard focus. With Linux, the keyboard focus is almost always where I expect it to be. But with Windows, when I start up Microsoft Outlook for example, it pops up the login dialog so it has the focus, but then shifts the focus away before I'm finished typing in my authentication info. And you can't bring it back with ALT-Tab; you MUST click on it with the hateful mouse. That kind of thing is not uncommon with Windows, but I never encounter it with Linux.
