Wow, i hate getting into debates like this one late. But before i start: I have a mac for iPhone apps, a Windows computer for gaming, and a Linux(ubuntu) computer for everything else(even some gaming, like world of goo, sometimes EVE).
I do whatever i can to stay away from my mac and windows computers. If i want to play big, commercial games that arent supported in WINE, then i have to use windows, but it's not that bad, because i rarely even see Windows, i just see the game. I stay away from the mac because i think that it's ugly and hard to use, but that's personal opinion. Really, why is it so hard to have multiple windows open at a time and switch between them, i either hit f9, or have to rearrange them to bring them up, i don't want to have to minimize every other window just to get to the one i want.
Quite frankly, i like my hue very much, you mac users can do whatever you want with your saturation and value, but my hue is very important to me.
Go on youtube and search for anything along the lines of ubuntu, compiz, beryl, or linuz, but add in some words like aero or special effects. I think my computer had probably a bajillion more effects than mac or win7 (or vista for that matter) I would post a link to one that's good, but I'm using the school internet here, and youtube is blocked.
Linux runs faster than anything else, in general. Don't argue with me on that, just accept it and realize that over 90% of the worlds top 500 supercomputers use Linux, and there's a reason for that.
Also, most versions of Linux are free, free as in beer and free as in freedom. And, as i have said on another thread, with regards to ubuntu in particular, who would *not* choose to use an os funded by a south-african by childhood, british by inheritance, founder of thawte(google it), billionaire, civilian, astronaut?
Edit: For some reason, i was reminded of the books 'The Handmaids Tale' and '1984' where our society, which likes 'freedom to' do stuff, are replaced by a totalitarian society where people are supposedly given 'freedom from' stuff like rape, murder, and myriad other things, so its your choice, 'freedom from' or 'freedom to'?
Edit2: Also, people like me aren't fanboys, or fangirls, we're zealots, because we arent all for a specific company, or money, or a celebrity. We are for freedom, awesomeness, and the greater good. For another book, try Cory Doctorow's 'Little Brother', even though he's not the best writer, he's got ideas.