I'd like to get either the Seagate or WD Green 1.5TB drives for backup, but both have bad ratings. Have the Seagates really improved in quality? I already have a few WD10EADS drives and am very happy with them, so I'd prefer the WD15EADS esp since it'll run cooler and speed is not an issue. But that has even worse ratings than the Seagate, and its more $$ as well.