sorry to the op but this kind of question is idiotic because a normal person would not be able to choose until his mind would be under enough stress so it would be impossible to come to a reasonable decision
and if you take the person who would be able to make a decision without any extensive difficulties that would just mean that he wouldnt care who he chooses and wouldnt care who lives or dies
a normal person can not make such a decision as long as they are in a sound state of mind