Short bio: Computer Scientist, FOSS supporter (read more)
Tux Machines (TM)-specific
I’ve been a Windows user since Windows 3.1, a Desktop GNU/Linux user since August and a MacOSX user for some weeks.
I will share with you what I was able to learn from my experience with these operative systems.
Contender number one: Windows XP
Windows XP is not so bad as an OS. It has a lot of hardware drivers available, runs on pretty much any modern PC and also on the recent Mac-Intels with Bootcamp. Also it has a lot of software that runs natively on it along with most of the PC games industry.
Contender number two: GNU/Linux
Both GNU/Linux distributions I tested were rock-solid and both were very user-friendly. Yea, GNU/Linux isn’t just for geeks anymore. Just grab a copy of openSuse or even better - Ubuntu. Try them for a week on your PC and give me a good reason not to use them over Windows as a general-use OS. If you just need to check your e-mail, browse the web and do some word processing or spreadsheet work then GNU/Linux has all you’ll need in a much more secure and stable environment than Windows.
Last contender: MacOSX.
Last, but not the least, MacOSX is my OS of choice. As I stated previously, I was a Windows user for over 12 years and a GNU/Linux user for some months, but after a few days of using MacOSX I fell in love with it. It’s not perfect but it’s pretty close. From the user-interface to the OS’s structure it’s all solid, polished and well developed.