As both a Mac and PC user I feel dutifully obligated to weight in.
#1.) Security
- Windows XP/Vista: Windows is insecure without 3rd party programs like anti-virus, anti-malware software and a good dosing of common sense.
- Mac OS X: Mac OS X is much more secure out of the box. While it is true that Mac OS X is still vulnerable to viruses and malware, currently nothing widespread exists. Furthermore, with its basic architecture and permissions, a person with applicable common sense can avoid any viruses and malware within Six Sigma accuracy (99.9997%). However, I do recommend Peer Guardian & ClamXav (both are free).
#2.) Stability
- Windows XP/Vista: Can be stable provided that you are using quality hardware with stable drivers. 75% of all Microsoft Windows problems are caused by 3rd party software including buggy drivers, buggy software, software incompatibilities and malware/viruses. However, Microsoft Windows isn't very complete out of the box - meaning you need to install at least 9 to 15 pieces of 3rd party software to make it fully functional for the average user (not including drivers). This provides more points for failure and instability.
- Mac OS X: Is extremely stable - but isn't perfect. With Mac OS X, 80% of all problems are caused by bad hardware and overheating. What makes Mac OS X more suitable for the average user is that Mac OS X comes standard with software that manages music, video, photos and even CD/DVD burning (when you purchase a new Mac). Even advanced users only need 4 to 6 pieces of 3rd party software. A lot less points of potential failure. Another more notable benefit is that Mac OS X only is supported to work on Apple computers. Meaning no drivers, or messy installs or even vendor installed crap ware (HP, Lenovo & Dell: I am looking at you!). The software "just works" with the hardware. Certain 3rd party products do require drivers, but again it is 3rd party and not a problem with Mac OS X.
#3.) Speed
-Windows XP: Can be extremely fast on requisite hardware and a speedy machine can be had for $400 USD.
-Windows Vista: Can be quite fast on high-end hardware and a fast machine can be had for $1100 USD.
-Mac OS X: Works well on a wide range of hardware and a faster computer is really only needed depending on the application. A 4yr old PowerBook will work GREAT for a general user that just surfs the web and sends E-mail and can be had on the cheap used. Also, a wise choice on a brand new Apple computer will last a general user for at least 3 to 4 years. While a PC will last only 2 years.
I am a power user myself and I currently have a 17" MacBook Pro which is 2 years old and I have a 15.4" Lenovo T61P with Windows XP Pro Sp3 which is 10 months old. I plan on replacing my MacBook Pro tomorrow (when the new Laptops are released) with another top of the line MacBook Pro. I plan to replace my T61P, by January. So a Mac for me, lasts twice as long as a PC while only costing ~25% more. My T61P cost me $2,500 while my MacBook Pro cost me $3,150.
Unless you are using very specific applications - Go with a mac.
However if you do go with Windows: Get Clamwin AV, Spybot Search & Destroy and Firefox (All Free). And never, ever, EVER use the pre-load. Always reload the OS from scratch. If you don't feel comfortable doing so or don't have a clue as to what I mean - Please, Get a Mac.
"Now, I don't want to get off on a rant here, but..." - Dennis Miller
