This who-copied-whom argument can and will go on endlessly and there's no point to it, really. PC users have their own reasons why they use Windows and Mac guys will always love their macs. Even if a feature's been badly implemented on either, it doesn't matter after the initial learning curve required. Then once you're used to doing things in a certain way, it's easier to continue doing them that way than having to reorient yourself all over again with a new operating system.
Now after that spiel, allow me to shoot myself in the foot
Last night, I smacked the living daylights out of my Vista installation. I formatted its partition and utterly erased its memory from my computer's mind. Here's why:
1. It couldn't game smoothly on it. This is after having installed the latest drivers for everything. And note, my system is rather decently configured.
2. It was laggy as hell and I'd constantly get errors out of the blue (pun unintended) with system processes like svchost constantly utilising 50% of the processor's resources. I had to then forcefully disable malfunctioning services. Note that I had all Windows updates installed.
3. Its Windows Side by Side feature is the biggest piece of bloatware to have hit humanity. My Winsxs folder in Windows has eaten over 5GB of my hard drive's space with pointless dll and whatnot backups.
4. I tried a reinstall, but after a couple of weeks, Vista went back to its stubborn state.
5. XP at the moment does everything better. Well not everything but whatever's currently required by me.