Aye HDD's are particularly hard to determine the source of problems.
For example, many issues with HDD failures is due to improper or insufficient packing combined with rough handling in transit. UPS especially have gotten really bad recently. And Newegg has really started to skimp on packing at times for their free super saver shipping.
This accounts for many of the drives that fail within a month or two of being received.
Installing 7200 RPM drives into external enclosures with insufficient cooling will also lead to early HDD death. Same applies for stacked HDD's in a computer case with insufficient airflow for high rpm drives.
I myself have 2 of the launch 1.5 TB Seagate drives still operating without a hitch in my computer. Reputation and internet hysteria can sometimes inflate the problems with one maker while at the same time making a worse problem at another manufacturer appear less problematic. BTW - this isn't to say there weren't problems with the 1.5 TB Seagates. There were, but mine for some reason didn't have the affected firmware. And no updated firmware was ever released for mine. Launch unit with slightly different product ID.
And when much of the reporting is driving by brand loyalty, brand reputation, and anecdotal evidence, it can be extremely hard to determine anything. For example, I myself have never had a Maxtor drive (had 6 or them at one time) last longer than 2-4 years before dying. Yet a friend of mine swore by them since he'd never had one die on him. Can either of that be extrapolated to indicate the manufacturer is particularly good or bad at making HDDs? Nope. But it does influence individual buying habits. I stopped buying them, while he continued. And in contrast to all that, I had 5 of the infamous Deathstar series of IBM drives. Not a single one of those died. One is actually still running in an SFF computer up at the ranch for one of my cousins.
In fact, the only brands of HDDs where I've never had one die on me? Connors, IBM, Hitachi, and Samsung. But I wouldn't go so far as to say they are any better than WD, Seagate, Fujitsu, or any others.
About the best you can do is look for any official word on recalls or problems. And then either return the drives for warranty replacement or flast the firmware if a firmware is released that addresses the issue.
Regards,
SB