I own both, have been a PC user for 15 years.
Mac has taken the top spot for me and everyone that has ever been round my house!
Macs are much, much, much safer to use, FACT(I work for a anti-malware company), the experience using a mac is so much more user friendly, much cleaner interface, all this cant play games bollox, I have OSX and Windows, my mac plays anything that runs on the windows platform.
Cost is not an issue, look at a total cost of ownership and you will find a Mac is a better long term purchase.
The thing that really takes the cake is the look of my Mac, people who see it are amazed at the size of the screen, the crisp display and not having any 'box', the overall experience is just so much more cleaner and professional.