If the person can't make this choice, then the law should always "err" on the side of life.
Michael Schiavo is a corrupt twit who stands to benefit by his wife's death. His attorney is a pro-death freak who is giving the entire "hospice" concept a bad name. Neither of these people should have anything to do with this decision - but they are the ones who control it.
I am hoping that what will come out of this is a system of local (state) laws weighted on the side of life. Did anybody hear the woman interviewed on NPR, of all places, who had been in a "vegetative state" for years but could hear them discussing how to kill her? Every time she tried to speak or wave her arms, they announced that she was having random nervous impulses and gave her drugs to quiet her down. And then one day she woke up - fortunately just before they were about to kill her.
Mistakes are always made, but they should be made on the side of life.