I may well qualify as a Mac fanboy, but the Mac is not without its own interesting problems. I've noticed that things start to get strange after I leave the system running for about 2 weeks without a reboot. To be fair, I can't say how Windows would behave without a reboot for that length of time; I've never been able to keep a Windows box stable that long.

Having said that, the Mac does start to exhibit odd behavior after a long uptime. Apps start to behave strangely; I was sure that my Parallels install of XP was busted. After a reboot, everything was just fine; Parallels started XP (instead of just hanging there after capturing the CD drive), and all my other apps behave normally again. I do like the Mac a lot better than Windows, but it's not perfect.