...I find it best to just look for well-reviewed products rather than brands.
I agree. There can be a lot of factors that contribute to HD failure as we all know. For example, back in 2004 I bought a refurbished Digital Audio G4 that came with an IBM DeskStar (ATA). At one point it seriously failed (mechanical failure) and I bought a brand new Hitachi (DeskStar I think, still ATA), and it too failed, but the Hitachi slave drive did not for some reason. Now I could have given up on Hitachi at that point, but instead I decided to get my drives off the motherboard ATA connector and go through PCI instead. So I bought a Sonnet ATA PCI card, disconnected the motherboard ATA cable and never had another problem with hard drive failure after that. I ran a Hitachi and a Maxtor drive off the PCI ATA card, and the only device that remained connected directly to the motherboard so to speak was the CD/DVD drive.
Some time after that I upgraded the ATA card to a Sonnet SATA card and ran a Samsung off it, then another Samsung, then a second Sonnet SATA card with a Seagate drive attached to it (nestled snugly in the previously occupied Zip drive in the carriage tray, because at that point I no longer used the Zip drive at all and because for all the times I had the case open, at that time I hadn't seen the third drive mounting plate at the front of the machine for some reason - it just blended right in I guess

).
I had no problems whatsoever with Hitachi, Samsung, Maxtor or Seagate drives after switching to a PCI controller card.
Whole point being as originally stated: There are many factors that can contribute to HD failure, and in the example I gave it seemed to be a case of some sort of issue with the ATA connector of the motherboard (or maybe a worn or faulty cable), not the HDs themselves.
All of that being said (and in all fairness) I admit that at one point I wouldn't buy WD drives because when I asked a tech at Microcenter what brand of drive he had seen issues with the most often, he said WD. This was probably 6 years ago or so, and I'm sure WD has worked out whatever that was by now. So I stayed away from WD-branded drives at that time. But, I would buy one now if a particular WD drive fit what I wanted and reviewed well.