I used iMacs early in elementary school and I liked the design. (Not so much the OS, which was OS 8 at the time) As time progressed, I found myself liking Macs more and more, but my PC was doing me OK for the time. But, When my it died for the 3rd time in a year, I had enough, and got a Mac mini. Well, that died in March due to my stupidity, and it got replaced with the iBook G4 that is listed in my sig. (I fixed the PC too; hoping it doesn't die again. 🙄)
I don't hate Windows, in fact sometimes I prefer using it over OS X because the interface is better in some ways. But, the stability and virus issues always send me back to OS X after a while.