Which series of WD drives did you have a bad experience with, if you don't mind my asking? My Hitachi experiences stemmed from issues with 15x 2tb Deskstar drives I picked up a few years back. One month in, 4 failed and killed a couple RAID 5 arrays I had going. In hindsight it was probably crappy handling of the OEM drives that killed them.
I've had decent luck with the 1tb WD Black Edition and 500gb RE3 and RE4 series drives so far. Seagates have been pretty poor in the desktop arena for a while now and the Toshiba laptop drives -well don't get me started on those POS drives...
Ever had to deal with the manufacturers' RMA systems? WD has been pretty solid for me. Quick turn around time and zero hassle. Seagate is about 2-3 times slower. Haven't dealt with Hitachi or Samsung yet though. I'm curious if Hitachi's RMAs are handled through the same system as WD's or if they're still separate. Anyone know?
Around 1998-1999 the company I worked for did a large install of HP workstations and a couple servers for an architectural firm. After a few weeks of use, the WD drives started developing lots of bad sectors, and failing. At first it was just a couple, and we just replaced them as normal warranty issues. Then a few a day were failing. HP finally came clean and admitted there was a widespread problem with a certain batch of drive used in those workstations. We replaced dozens of hard drives in those workstations, and keeping the customer happy was a real challenge. Fortunately the servers had enterprise Seagate SCSI drives, and those lasted years. About the same time I had two WD drives in a personal system that both failed within a month of each other, both had a dramatic head crash. Upon opening the drives, there was a pile of dust in each one and scores on the disk platters where the heads ate into them. (After the failures from the workstation drives, I was not about to trust warranty replacements from WD at the time.) Unfortunately I do not remember the models of the drives, just that they were 3.5" IDE (not enterprise drives but supposed to be 'workstation class' what ever that meant at the time).
As anyone who has been working in this business for a long time, I'm sure we all have had a really bad time with one product or another, and swear off them. I'm sure it was just a fluke, and all manufactures have a bad run once in a while. What one does remember is how it was handled, and WD (and HP as well) tried to cover it up while throwing us under the bus.
I am sure all the current companies making/selling drives make a solid product. They would not be around for long if they had to replace every drive they sold.
Not trying to incite a HD religious war, but just to explain why I get a nervous twitch whenever I look at a WD drive to buy.