Personally i like the heart/lung area and would never attempt a head or neck shot. Ive heard a story one time where a guy shot a buck in the neck and dropped him. They thought he was dead so they started dragging him out. He only got knocked out by the shot. He woke up and went crazy then ran away. Turned me off of head/neck shots. Im not against them though. If you can accurately shoot the head or neck go for it. Ive heard they are lethal when done right.