Well, depending on the emotions of the characters that could have a major difference on the song choices. for example, I liked Where ever you will go. Remember when Clark put Lana's necklace on the door. she was looking for it because she gave it to her boyfriend, but it wasn't returned. That is until Clark returned it. That song symbolized how he would go out of his way for Lana. it showed how much he cared. In a way this song made me cry, but in a joyful way.
The song that made me cry is: "I Grieve." by Peter Gabriel at Jonathan's funeral. Well I guess everybody would've cried at that. And I agree, it depends on the emotions of the character's, I cried because I felt for Martha; her loss; her grief...etc