Seagate's first generation 3.5" drives we could barely get out the door before they failed. Since then, my experiences with Seagate have been few, but not real good. During a drive shortage a few years ago I used a bunch of Seagate SCSI drives and had 50% failures within 2 years.
Something just struck me. Seagate sells a huge number of drives, supposedly dominating the market. I see the insides of a lot of PCs, brand name and unbranded. I rarely see a Seagate drive. Where are they all going?
My best low failure experience was with Fujitsu, up until they exited the low end drive business. Soon after that, the batch of 20-Gig IDEs with chips with bad heat transfer compound started dropping like flies. I've got 6 of them right here waiting for RMA action.
I've had normal failure rates with Maxtor and IBM (now Hitachi) drives.
I don't use Western Digital at all because they are a maintenance hassle. WDs are jumpered differently for Single and Master, so every time you change a PC's configuration you have to remember to pull out the drive and change the jumpering. I just don't need that.