My Apple has never crashed for the three years I've had it, I have never gotten a virus and so it's definitely more stable than any PC.
They come with more software than PC's do, it's not fantastic software obviously, but it's fun to play with and it's helpful.
Lastly, you can now officially run Windows XP on the new Intel Mac's, so you can get the awesome Mac OSX OS and keep Windows XP for buisness or whatever else you need it for.