Solafaa, there's a few things that really matter a lot like the stability and security and fantastic multitasking. Try this on a PC and see how well it does (not just having everything open, but having the apps actually doing things, like render 3D animation):
I can almost guarantee that would choke even the fastest PC and grind it to its knees. I know because I have to use PCs for graphics work often. It could be done, but it'd become very, very slow and unstable. Yet that's a typical scenario for me on my 800 MHz PowerBook.
But for me it's mostly in the small things. Things like Exposé for finding a particular open document quickly when you have 10 apps and 30 windows open (see above). Having near-instant wake-up and sleep on a laptop. My friend's brand-new Dell laptop takes about 10-15 seconds to fully wake up from sleep. Installing apps can often be accomplished by dragging a single file from a CD to your Applications folder, and uninstalled just as easily. Ability to save PDFs directly from
any document in any application. If one application crashes, it doesn't crash the whole computer and require a restart. I like the Mac menu bar being in the same place, all the time, for every application, instead of hunting around for it in the window of each document. AppleScript can automate many tasks and when Tiger comes out, Automator is going to make it even easier. Handling of text input and display is universal across the operating system, which has consequences like: global spell-checking, wherever you type anything; type non-English characters anywhere, such as Japanese Kanji; and apply a "service" to any selected text, for example open it as hexadecimal representation or send selected text as an email. Fast and easily accessible hard-drive searching. And as the other person mentioned: true plug and play. It's still not there yet on the Windows side (although better than it used to be). Plus there's OS X itself and all the great apps like iTunes, iPhoto, iMovie, iDVD, iChatAV, Safari, and QuickTime. There's also a complete set of amazing developer tools included free, and real UNIX terminals you can open if you want to. Finally there's
really detailed stuff that's hard to describe, like how well the open and save dialogs work (jump to last 10 recent folders for example), and how much nicer the OS looks in general, user interface elements that actually line up, popup boxes and tool tips that don't cut off their content if they're too close to the edge of the screen, consistently antialiased text, and icons that weren't designed with crayons by a random mob of fifth-graders.
The hardware is also amazing. Yes, you pay a premium for it, but it's elegant in both design and function. It is a machine with a soul that is lacking in any PC I've ever used. PC owners typically hate their PCs; Mac owners typically love their Macs. Why is that?
