Of the drives you listed, the only one I'd buy, from a reliability standpoint is the WD Black.
I NEVER buy a GREEN, BLUE, or red with yellow pokadot drives. Seagate makes some good enterprise drives, but their consumer models are not the best.
The ONLY two drives I've bought recently are the Samsung F3s - love, but Samsung sold to Seagate - only saving grace is that they are made at the same factory by the same people, and the Western digital Black.
The hybrid Seagate drive you mentioned, is a 5400 RPM drive, slower than it's smaller 750 drive which is 7200 RPMs. Remember they only have a 8 Gig SSD cache, everything not in the cache is at the slowwwww HDD speed.
Also seems that they suffer the same reliability issues as other Seagate consumer HDDs.
WD Caviar Black™
These high-performance SATA drives combine 7200 RPM spin speed, up to 64 MB cache, SATA 3 Gb/s interface, and an integrated dual processor for lightning-fast performance in demanding desktop, workstation, and multi-drive systems: http://www.amazon.co.uk/s/ref=nb_sb_noss?url=search-ali...