I have 13 Seagate drives in my various computers. Of those, I have had 3 fail, five years ago, and none since then. Their reliability has improved significantly in recent years. The old 1TB drives did have some reliability issues, but that has certainly changed. In case you didn't notice, the latest series of desktop drives, 1 to 3TB for certain, are Samsung design, and likely produced by the production facilities Samsung sold to them.
As for enterprise drives, my lab has over 25000 drives of various manufacturers. Seagate has been, by far, the most reliable with only five failures in the last year, while being the highest minority drive in the lab at about 30%. (We have just under 8000 Seagate drives of various ages and capacities.) Toshiba 2.5" drives were by far the worst with 45 failures in the last year out of 2000 drives, all of them between one and three years old. When they first came in, the failure rate was higher. However, these are all enterprise level drives, so they should be held to a higher standard. In the desktop world, 2.25% annual failure rate may sound fairly decent. It's certainly not in the enterprise world.
My company has now insisted that our OEM suppliers, Dell and NetApp, use only Seagate drives with the products they build for us. My company believes that Seagate is the most reliable, and the numbers from my lab are part of that proof.