Your experience is strange. I can safely say it is something other than the disk brand that is the problem.
A couple of ancient 300GB Seagates and a 640GB WD Black have been used as my torrent drive alternately for the last three years. All are still running fine, even with constant read/write operations.
I also use a 1.5TB WD Green as a pseudo-NAS in a USB case and it has held up fine under 24x7 operation for the last six months.
In fact, after the initial failure of one of my WD10EACS and its replacement EACS (which series had a severe problem with failure rates), I have yet to see even one WD Green drive die on me, and seven of those are operating 24x7 - six in my server and one attached to my router. A few of those drives date back to 2009, so not new drives either.
I don't understand this FUD about 'WD Green drives dying'. Anectodal evidence is not hard statistical data, and if a manufacturer experiences lots of returns it will typically stop production or correct errors in the production because it's not profitable to run with lots of returns. What the WD Greens are not designed to do is run as NAS because the head parking algorithms of the drive are too aggressive, and using drives like that in applications like those can only be termed user error.