I like Seagates pretty well myself. Some of the Hitachi line dates back to the older IMB Deskstars, also know as Deathstars. As a result, I'm a bit leary of them, though I have one and its worked ok for about a year and a half. I've had mixed luck with Western Digitals. Their SATA connection is flimsy and more than one person, including myself, has had the connection break. Sometimes its only the plastic and you can superglue the line back on, sometimes it turns the drive into garbage. My Seagate has a much better connection in that reguard.