I have both Windows (I am typing on it now) and a iMac (not yet on the internet) and I can say that OS X is far better than XP in every aspect.
Sure there aren't as many apps for it as Windblows but what there is is all top quality stuff, no crap like there is for Windows, hell a lot of third party software freezes that often that it is not usable, even MS own software crashes on Windows easily.
Then we get the good old 140 000 viruses a year for Winblows and 0 for OS X, hmmm now which one would I feel more secure using?🙄 When ever you bring this up when Winblows fanboys are saying crap about OS X you get the "you won't get them if you have and anti-virus and configure your system right plus have spyware and adware removal programs running as well", with OS X you boot it up for the first time and thats it (are using it in 2 minutes BTW not over 10 minutes), we do not have to install a anti-virus program and then go and "configure it properly" to avoid getting a virus.
I would take OS X any day over Windows.🙂