I think most people have no problem choosing. What was interesting was that the Trolley Problem arose in the context of a discussion of traumatic brain injury. It seems that studies show that certain parts of the brain are more active in considering "Moral-Personal" dilemmas than "Moral-Impersonal or Non-Moral dilemmas, and that people with damage to those parts of the brain are more likely to find personal moral violations acceptable, and make such judgments more quckly, than the rest of the population.

Which, although it was not the subject of the discussion, raises the interesting question of whether what we call "morality" is hard-wired in us, and also what the evolutionary benefit is to this.