I got a Dell
I have a Dell. I've almost always had two computers though.
As I've upgraded, I've handed down my various computers to relatives. A couple of years ago, I recommended my mother upgrade her computer from a Mac Performa to a new Dell from Dell's Outlet store. It was a huge improvement (big surprise).
My second computer is a Mac G4. I use it for a server, and I have a Belkin KVM switcher so it shares my mouse/keyboard/monitor with my PC. Over time, as a power-user, by PC sucks... Dual Windowing on the PC is ridiculous when you've used a Mac. Previously on the Mac, Photoshop allowed me to stick a "zoomed in" view in one window, and an "actual-size" image in the other. PC users can't do that. You can only put tool bars in one window and images all in the other. Also, Windows runs out of memory much quicker than the Mac. I can be running 15 "power" applications (Photoshop, Flash, Dreamweaver, Director, Illustrator, iMovie, etc) on my Mac, and its fine... on my PC, it starts choking very quickly, and doesn't know when to tell me it doesn't have enough resources. Windows appear half-drawn, and sometimes Internet Explorer will open a half-drawn window it doesn't have enough memory to close. It's pathetic. --But only pathetic because I've used Mac OS X, and I used to use OS 9 with no virtual memory, which told me clearly and confidently when it didn't have enough memory to run a program.
But my mother is pretty happy with her Dell. She can run that Bible program the Home Shopping Network sold to her as "PC Compatible", and she doesn't have to worry about what will or won't run on her computer. It's all predictable. Now, with Parallells and VMWare out there, I would almost unreservedly recommend she spend many hundreds of more dollars to get an iMac. It's just BETTER. We got her Dell for cheap... like $400 and it is peppy and "new". She could have gotten a MacMini for a little more money, but that's hardly comparable to a full-fledged iMac.
Me? I'm still saving to upgrade my G4, maybe by the end of the year. Who knows. A nice 24" iMac for $1999 will let me kill off my Dell and my G4 and radically improve my desk space. For most people though? It's kind of tough. The Mac these days is a tremendous value, but crappy PCs are definitely a solution for pocket books that ail you. I mean, its a nightmare of virus protection and spyware, but as long as you don't have kids, you're generally protected from accidental browsing to websites that will infect you. If you DO have kids however, its constant viligilance on SpyWare, or getting a Mac.
The amount of people, friends, acquaintances, that come to me with stories of trashed PCs is ridiculous. It's just awful, and unproductive. OEM virus software is usually a running joke, I've even had trouble installing Norton Anti-Virus (and friends) on my PC. It's like a second IT job I never wanted to have, and neglect as much as possible to get other things done. Meh.
~ CB