Sound design wise, the first Alien remains the leader. Come to think of it, the first Alien remains the leader in every category: cinematography, sound design, story... and even visuals if you think of it. Prometheus looks like a video game. Alien looks like reality. While Prometheus is a good piece of entertainment, it lacks the dirty organic reality of the first Alien. Story wise, there are some major over the top non credible action scenes in Prometheus, whereas in Alien everything seems real. The sounds of Alien are scary... truly scary... from the heavy breathing to the warning signal to the ticking sound of the Nostromo Bridge... the sounds in Prometheus are the standard high end audio package without anything worth remembering. Seriously, Prometheus is to Alien what Ketchup is to a Tomato. It taskes good, it goes with anything, but you don't eat Ketchup in top line restaurants.