As far as WD, though, I can say this: They have EXCELLENT EXCELLENT support on their drives.
As an example...
About a year ago, roughly, I had 2 WD Black 2.5 laptop drives bite the bullet... well, one was probably a year ago, and one was probably 6 months ago, I guess..
Anyway, they just sat, b/c I was forgetful to get them replaced, as I had others to use anyway.
So, I finally remembered one day, and looked 'em up... both sure enough still under the 5 year warranties, so I filled out an RMA for the 2 of them - same RMA, 2 drives, boxed 'em up, and dropped off at a UPS store. B/c of using UPS store, and maybe paying a little extra on insurance - I forget - I spend $12 and change, I think.
Literally, less than one week passed, and I had a new hard drive on my front porch. Waited a few days, checked RMA status, nothing changed, so I called Western Digital. On hold 3 to 5 minutes, talked to a human, and they said sorry b/c one drive was replaced, but not other... and sent the 2nd replacement.
Here's the kicker...
My original drives were 250GB and 320GB. The ones they sent out were both 750GB!!! All b/c that's what they had in stock.
Even with making the phone call, I had both drives replaced in about 2 weeks. I think that's just incredible!
Generally speaking, if I didn't have the time or want to take the time to investigate specific models, specs, etc, I'd likely just go with Western Digital. Yeah, I've had problematic drives from diff manufacturers, good ones from diff manufacturers, but Western Digital overall has performed well, and support is second to none (well in my limited experiences - I had also gotten one replace some time back, few years I guess).
"But thanks be to God, which giveth us the victory through our Lord Jesus Christ." 1 Corinthians 15:57