Well, I can give it a shot, although I am of the slash and burn crowd.
I used to do OEM Support for a local machine builder, and got so used to seeing systems, totally thrashed, and in need of reformatting, and am so used to doing that, that a clean base image. Is all that I really go for. Although the older I get the less I want to fart around with it (reinstalls.) I just get the willies, when a install, is on a machine for more than a couple of months. Little program Turds, in the nooks and crannies, possible Spyware, OS Holes, and God knows what else, and Incremental Backups, just feel like compounding the problems. I guess I am biased, but I am going to check out the Proggie that fuzzy Mentioned. Free is cool, and I can always pass it on to my clueless relatives.