Mind you this was a few years ago, but I was in charge of project of changing out hard-drives. Half of them I went with WD, the other half SG. I didn't have one WD fail over the next few years...SG I had multiple fail. Ever since then I only buy WD.
But this was obviously not a scientific test. Maybe that particular model of SG was just bad. But I dunno, that's my biased opinion for what it's worth lol.