I would like to go on record that I have never had a HDD fail on me, EVER. That also includes memory, CPUs, videocards, etc. All my computer builds have been Seagate HDDs, with my last one (few years ago) with Western Digital, had better price/capacity at the time and great reviews. But I don't have the computer anymore, so can't comment on if they are still running or not, but my guess is yes. My builds also did go to a few big name LANs, so they were moved a bit.
But will say, my old Athlon XP 2200+ system at my sisters house is still running strong, with a Seagate 80GB. It's the kids computer, in a little cubbyhole in the desk, not a whole lot of airflow, and has literally been pretty much on 24/7 for the past 6 years, still kickin'.
Everyone has different experiences with different companies. It also does come down to how your product is being handled, how much it's being moved around, how it's packaged, how it was shipped, etc. There are too many factors from FACTORY to HOME to completely pin it on the company. Yes, there are some companies that have bad reputations for failing products. But every company has a failure percentage.
I have loved Sony products (mainly audio, but Sony in general) my entire life because it's a good price/performance and the core of the product seems to outlast the plastic, etc; and that is also how you take care of your stuff.