I always love the Macboy argument of "Well Macs get less viruses and malware..."
No they don't. They simply have such a small share of the market compared to Windows-based PC's, that software companies usually only write for the Windows market. As a result, all of the malicious hackers only need to write worms, trojans, etc., based on that platform to reach a large percentage of computers in a network.
Furthermore, a Mac user needs only to frequent porn or other such nonsense to suffer the same consequences.
As to the "Mac OS is easier"... no it isn't. It's more buggy than Windows 7, and dictates what you, the user can do. Windows is completely moddable, and is limited only by the user, not by software parameters.
If you want to be told what to do, use a Mac. If you want to do whatever you want, use Windows 7.