Even though I, like most, felt that the score was played a bit too much throught the movie, I really did like it. To me, its tone was what Goldsmith would have done with Alien if Ridley had let him.
What was the main theme called, the music that played during the opening credits?
EDIT: Also, what was the name of the song that played while they were racing back to the Prometheus to escape the sandstorm?