^ Come to think of it, the only thing the human husks have going for them is that there's a bazillion of them and it apparently takes about five minutes to convert them. I cannot recall the exact population statistics for the Asari or the Turians, but I almost wonder if the the real "special" thing about humans was high population density and ease of conversion.
That's probably what the Collectors had in mind, now that I think about it. Humans were there target of choice because 1) they had ALOT of colonies 2) those colonies were poorly defended 3) human gene-goo is probably easier for the Baby Reaper to digest.
That sort of goes back to my unfulfilled wish in Space Opera conflict premise: humans come into conflict with a hostile alien species simply because the aliens think humans are weak, numerous, and delicious.