so you're saying that seagate sucks vs western digital?...now, are these all portable external hard drives you're talking about or just external hard drives???...from my research, i was told that external hard drives will burn out faster than portable ones for the fact that they accrue more damage being transported anywhere or any place...explai n please without bias... 
no seagate doesn't suck it just depends on luck, i've heard people who swear off on western digital saying everyone they have broke, same with seagate etc and so on.
seagate, western digital are the only 2 main ones now anyways, i think hitachi is still around too
samsung hard drive division got bought by seagate too
as for external drive damage, yes i suppose thats a factor too if you're clumsy with your stuff and just throw it around.