Interesting thread, I have been enjoying reading it. I have been a Mac user since June 2010 and I honestly prefer it. It's definitely not perfect, but I find overall, VoiceOver is a reliable screen reader and I am able to get everything I need to done with it. Some of it could be that I've been using it for so long now, I'm just used to it and it's quirks. Also being an iPhone user, I love how everything is synchronized. All of my iMessages are on both my computer and phone and I can very quickly and easily respond to them. And of course, there's also the ability to hand off things. I could start an email on my iPhone and finish it on my mac.
There is just a lot of convenience to it, and I find it helps me be productive. Is it perfect? Definitely not. But give me the choice of using my PC or my mac, I will pick the mac every time.