Hitachi (formerly IBM) branded drives were the most reliable out of them all. And unlike Hitachi, Western Digital crippled their SATA drives with TLER settings to prevent proper RAID operation. The drives would drop out after 30 days of continuous use in some instances. So, they forced users to use either the Enterprise or RAID edition drives. It pisses me off that it's not Hitachi buying out WD.

And yes, WD MyBook drives are absolute shit too. Don't use them for backups. They last about year or so and that's it.