Buy whatever is cheapest that meets your requirements. I'm more familiar with Western Digital, so for my NAS I use their red line. For my digital video recorder I use their purple line, for slow archive storage I use the green labeled drives, and for my desktop I use the 7200 or 10,000 RPM drives...
Oh who's kidding.
I buy whatever is cheapest and then complain about it.
I've replaced hundreds of WD's, and probably a hundred Seagate hard drives. I personally buy WD's most of the time because they generally are cheaper.
My plan right now is to buy a 4tb internal hard drive for my desktop and buy at the same time a 4tb External. Back up the internal periodically to the external.
Multiple backups are far more important than trying to figure out which brand of hard drive is marginally more longer lasting. They all fail.