I hate to admit it, but I was wrong to turn in my nearly-brand new MacBook last January for a Sony Vaio with Vista.
I had a few pet peeves with the Mac, such as the windows not maximizing to occupy the whole screen, not alt+tab between same program windows, etc.
However, after having had the Sony Vaio with Windows Vista Business and Office 2007, I am ready to find a buyer and go back to a MacBook, which now would come with Leopard.
Maybe some of the issues I have are related to hardware, but most are related to software. My embedded webcam does not work, the wireless hardly ever works (I need to restart many times to make it work), the keyboard has a very slow response time and I spend double the time that I would typing on the Mac. That is all in terms of hardware.
In terms of software, aside from a more aesthetically pleasing interface, I basically see Vista as Mac's Tiger. My computer freezes at least 3 times a week. Internet explorer tends to freeze if I open more than four tabs at a time. It's really hard to configure your computer with all the new interfaces (such as the network connections). And despite having a 2Ghz processor and 2GB RAM, it has a slower response than my ThinkPad at work which has Windows XP and is already 2 years old.
So now it's all about finding a buyer. However I've done wrong in getting people excited about Leopard...