I prefer the XP Pro. I didnt like home, too many system apps running at the same time, most of them useless, and very prone to adware/spyware, which slowed it down incredibly. I liked 98SE, but XP loads faster than my 98SE did, especialy Pro. takes about 10-15 seconds max to load XP Pro. Plus, i have seldom had any type of system failure/crash in my dealings with Pro. Infact, I will only sell Pro with the computers i build.