I want to upgrade my 3.5" drive in my iMac. Ive been a WD fan forever it seems, so I was thinking about maybe a Black drive. I have a Samsung 850 Pro SSD installed for the OS, so this is only for internal storage (I have a 4tb ex. drive as well). Has anyone used the WD Blue drive? Or maybe a different brand? Like I said, Ive been with WD for years now, but if there is something out there that is just as good, if not better, then I would think about it.