For me would be the CDC full height Wren II 94155 Series U.S. made drive. Same HDA was also was available with SCSI and EDSI logic boards.
I put a used 94155-86 into my Compupro System over 30 years ago, and it's still cooking. The first 20 years of service it ran nearly 20 hours a day.
You can't argue about the superior service life of plated media used by CDC to build this series of drives vs the conventional (lower cost) oxide media that most companies were using at the time.
I tried using Seagate ST4096 about 6-months to a year after they started shipping from Seagate because of the huge price difference between the CDC and Seagate drives (the ST4096 cost about 950+ at wholesale during that time), I think the CDC 94155-86 cost me $500 more than that. Every one of the ST4096s that I sold died very close to exactly 6 months after they were put into service. That's right, every stinking one died. Seagate was quoting 9-12 months to replace under warranty with a reconditioned drive, but was perfectly happy to continue selling new drives to people at the same time. I ended up buying my Customers who had purchased ST4096 drives from me (that were under warranty from Seagate) new drives out of my pocket, and waiting for the replacement drives to be shipped by Seagate.
Yeah, Seagate had new drives to sell to customers, they just refused to channel the revised new drives to existing customer who already bought drives from them. The way I see it, Seagate had a Legal and Moral Obligation to replace the defective drives with the drives coming off the assembly line, and not scheduling the customers with in-warranty broken drives for an exchanged-drive at a later date. To add insult to injury, some of the recondition hard drives that Seagate sent me in place of the defective drives died, the same way as the original drives at the six month mark, and had to be replaced a 2nd time (with a 2nd waiting period). For that reason, I don't trust Seagate anymore.
There are at least two different versions of the Seagate ST4096. One has a flat top to the HDA, and the has a u-shape (horseshoe shape) logic board on the top of the HDA. I don't remember which series were the bad ones, that was 30 years ago.
The Seagate ST225 had a long production and marketing life compared to many other competing drives of the same capacity. The maddening part about the ST225 is that Seagate seemed to forget how to make working ones periodical. I mean I'd be selling bunches of the drives and they would be working fine. Then, I'd hit a rough batch were they were many failures of new drives out of the box. Then, for some reason, new drives would go back to arriving and working fine. Consistent quality seemed to be a problem with Seagate.
In the end, Seagate ended up buying out the CDC 5.25" hard drive line, if I remember correctly to get CDC's 3.5" hard drive technology. Seagate kept the CDC Factory churning out the Wren 5.25" drive for a long period after the buyout, using the original CDC model number at first, but later renaming/renumbering the CDC designed drives with Seagate ST designations.