I always use WD drives.
Have several USB3.0 passport drives, and my Drobo has a RAID array with WD Red hard drives.
Ive never had a WD external drive fail on me.
We've come to a point in technology where hard disks have been refined so far that they are all pretty much the same, just with various brand names. I work with computer networks and have seen drives of all makes fail in the past.
Saying that, Ive recently switched to ThunderBolt connected drives now. So my main Drobo 5D is connected via ThunderBolt, but I still went with WD as it has a WD Red drive array, which are drives specifically designed for NAS environments.
I also now use a 1TB Buffalo Ministation ThunderBolt - purely because WD dont have a portable Thunderbolt drive. Its also been equally as good IMO.