I've run the gauntlet of all brands, hand me down drives, purchased my own, fixed immediate family member's computers.  Since 1996, I've had 5 hard drives fail on me.  3 WD's, 1 Deathstar, 1 Samsung.  The brands that I've never had fail on me were Maxtor and Seagate.  I even have a Maxtor circa 1997 that is fully functional, and its been abused.
And I've run into this thread across many forums and everyone claims are different.  I find it very similar to cars (Chevy, Ford, Honda, Toyota etc).
Not every model is the same across a brand.  Not every brand produces perfect drives.