I have an Apple //e sitting next to me tricked out with solid state storage and an ethernet card.

*puts his nerd card back into his wallet*

I get asked this a lot. For the Mac, it's pretty simple for me:

Windows: Has a decent/cohesive UI but a crap OS underneath
Linux: Has a great OS (unix) underneath but a crap UI (C'mon admit it, it sucks and is not cohesive)
Mac: Has a good/cohesive UI and a great OS (unix) underneath. Best of both worlds.

For Apple products in general.
1. Stuff just works. Got my first iPhone, plugged it into my Mac, Sync'd it with iTunes. 30 seconds later my phone "pinged" that I had new mail. Everything was there.
2. It's much more than the device itself. My mom has a Mac and needed help with various things. Made a genius bar appointment and they helped he with everything and didn't make her feel like an idiot. "How do I move things from my flash drive to my Mac?" "Oh, here let me show you."

Also, believe it or I think they (most times) have a good sense of the way things should be.

In the beginning, Android users would say how stupid it was to have this "walled garden" as they can install from anywhere. Ends up that installing from anywhere is might not be such a great thing.
Then they said how stupid it was that there was only one version of iOS and many flavors of Android. Ends up that fragmentation is not such a great thing.

I say use what works for you. Working on a Mac with a trackpad and using spaces fits how I work very well. If I need to write some documentation, I use MS Word.

To each his (or her) own.

If it doesn't have a touch screen, then I call "Fail!". Unless they've done a lot of work on the interface.

I've installed Android x86 on a netbook and it is horrendous with out a touch screen.

Android, since it's roots are for mobile phones, really wants to be touch driven. Without it, I'll pass.