Personally, I don't believe it's so black and white. I don't think one is worse than the other, in my opinion both are horrible given that both can be extremely hurtful to anyone in different scenarios.

I found a very interesting article about it once: http://helpingpsychology.com/sociopa...the-difference

Basically there is more than one area to evaluate once you come down to it. When I've tried to understand from the mental evaluation is difficult to understand how someone could just not know feelings. And from a criminal point of view, it is absolutely scary how someone who can feel no guilt or remorse is truly capable of.