My HDD is failing

WD is probably the best HDD maker, very much reliable alltough not 100% like any hardware maker.
Seagates have been faster than WD in my experience, at least as HDD go, but they seem to fail fairly often and are also noisier, which is odd.
dont know about Toshiba never had one always went for a WD or a Seagate.

So i would try to get a WD, at least the Blue ones, the Greens are too slow to justify their power savings and noise reduction. If you cant get a WD then the Seagates would do just fine.

Never had probs with Western Digital or LaCie Porsche.

First drive is a second hand Seagate with clean Windows 10, (many of that hours are mine)
Second drive Hitachi always used as backup of my files, I need other drive to back up this

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All brand have good and bad drives. I read an article not too long ago that put all brand drives through torture tests and they did conclude that WD was more reliable than the rest, but only by a small margin and there probably wouldn't be any noticeable difference to a consumer under regular use. They also noted that all brands had higher rates of failures in their 3GB and 4GB drives.

Everyone has a story about how a drive of one brand or another that failed them and swears that brand sucks. I've been using computers for a long time (my first HD was an 80MB Seagate), both personal and professional. and I've had equal successes and failures from all brands. My most recent drive failure was from a WD. The oldest drive I still have in use is a 400GB Seagate that is probably 10 years old or more. I also have a 2TB WD Green that ran 24/7 for over 5 years in my home server/HTPC before I replaced it. There was nothing wrong with it, I just felt it needed to be replaced after such a long, continuous use and also upgraded to a 3TB while I was at it. I still use that drive as one of my backup drives.

http://www.pcgamer.com/ongoing-hard-drive-test-shows-hgst-is-the-most-reliable-brand/
HGST

Roughly 10 years ago, my friend and I bought Western Digital external hard drives from the same online store. Suspiciously enough, it failed soon after warranty expired, for both of us.

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HGST, if you can.
WD, if you want large capacity.
Nothing more is worth it in mechanical drives. (Well, okay, some SeaGate laptop HDDs are actually good, even if their desktop line is utter garbage nobody ever should touch.)

General rules when shopping for hard drives:
Seagate - fast and cheap, but prone to failures
Western Digital - Black and Red drives are fast and quite reliable, but pricey; Green are slow but somewhat cheap; Blue are cheap and medium-fast, but not too reliable
Hitachi (HGST) - practically indestructible, but higher capacity drives are pricey
Toshiba - they're uncommon, but they should be pretty reliable

I still have a lot of hd's in my gaming rig. Dates from the times when streaming and vod werent that great. They are full of music, games, tvshows and movies (my OS is on a SSD).. But not one of them died on me yet. They are all WD Green, Most are 5-7 years old, and the biggest one is 2 tb.
So naturally WD would be my choice if I ever need a replacement.

S.M.A.R.T status? OK or BAD?

i will never buy any hdd more, my 2tb seagate wasnt alive even 3 years, although my 40 gb seagate(which one is 14 years old still alive)
at the same time my 3yrs old ssd is alive with 100% condition
I'd rather will wait a bit when ssd will be not so expensive

Backblaze is a backup solution. They used enterprise grade HDD as well as home consumer's grade HDD.
They published many articles. Below are some of the statistic of drive reliability.

https://www.backblaze.com/blog/hard-drive-reliability-q4-2015/
https://www.backblaze.com/blog/hard-drive-reliability-stats-q1-2016/
https://www.backblaze.com/blog/3tb-hard-drive-failure/
https://www.backblaze.com/blog/hard-drive-reliability-stats-for-q2-2015/
The last article show this graph. Apparently 3TB HDD have a high failure rate.

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buy HITACHI

My 2 latest dead HDDs were both Seagate (1.5TB and 2TB). I don't trust them anymore. Now I own a 2TB Toshiba, is noisy (7200 RPM) but very reliable. The Toshibas are manufactured with Hitachi technology.

I was deciding a lot and I think this:
Can't buy Hitachi or Toshiba - in our country, they are sold just in a few small shops, which I do not trust.

WD Blue or WD Black - speed is nearly same, but warranty is 2 years (Blue), and 5 years (Black)
Black should be much more reliable but it is more pricey
In our country Blue 3TB = €100 and Black 3TB = €171
Future failure is my nightmare, so I will buy the Black one which should be more reliable.

Hitachi. Seagate is shit. Western Digital isn't that much better.

Western Digital Black the best! High-speed, reliable, great warranty.

all HDD brands have pretty high failure rates you can use this site to check the stats for a particular brand and model if they have tested,most sites will leave out the number of drives tested or sold of that model and therefor give useless numbers so careful of that if checking other sites reliability charts.While i used to love WD drives specifically there VelociRaptor's and blacks i would hold off on the WD drives they some of the highest failure rates in the industry and every single one i have ever owned has failed.also avoid any 1.5TB drive they all have horrible life spans.