Macs and PCs are different. Yes. The more uninteresting users from each camp (the ones with too much free time and not enough other faculties) will waste many breaths, words and bytes trying to state one over the other.
I'm a Windows user, and have been since Windows 95 OSR2. Never before has installing, configuring and using an operating system on my machine been so easy (from OEM discs anyway) and quite so delightful.
My version was an upgrade (from a version of Vista - myself being the only man on the planet not to have major beef with Vista's workings and operation of my machine), and it was done within an hour, and up and ready running. Only two devices needed drivers from elsewhere - my memory card readers built into my very specific chipset.
The UI is easy to use, and a lot more intuitive, feling a lot less like a fancy layer on top of the old explorer, and more like a lighter weight re-thinking. The usual features are here (explorer, etc), but the Aero experience brings a new way to store windows on the taskbar, add apps to the start menu, and manage windows (drag a window to the edge of the screen and it "maximises", and shake one window to minimise the rest, etc), and the look and feel of the entire system is a breath of fresh air.
The control panel is re-arranged, but still as usable, and the "under-the-hood" features can be turned on or off at a blink.
Windows XP Mode is available (for Pro/Enterprise/Ultimate) to run legacy applications (read OLD PROGRAMS - NOT GAMES), and when your machine is set up correct, can run almost seamlessly.
This is a great new step forward in the Windows NT-based series, and has given my laptop a whole new lease of life. Just think about what your operating system actually DOES for you, and what you could do with your computer WITHOUT an OS, and you'll realise the price is great value.