Okay, if 1 is hardly sad at all and 10 is life-long-deep-depression.... hmmm... Seven? (wow, that sounds obsessed... >.> LOL!)I kinda went into an emo corner for about a week, then ranted about how stupid the whole thing was for maybe two more weeks. And I cried a couple times during the movie. Okay, to answer you question... hmmm.... The movie was the most sad, the anime was the most dramatic, and the manga was... well, actually I basically skipped the manga. When I read that particular chapter, I was in a bookstore with a friend, and when she saw WHAT THE CRAP I WAS READING she flipped the pages really fast to get over it quickly. So I only caught a little of the manga, thank goodness.

I cried when L died :( I think L's death was more dramatic in the anime than in the manga

yeah, i cried. lots. both reading the manga AND watching the anime. but i think the anime was sadder cuz... well he was like, dying right in front of my eyes. and it was in slow motion, making it more dramatic compared to the manga. although the movie was even SADDER, cuz its an actor. even if the actor was just acting (no duh), L, character wise, still has that effect on you as a real person would. but, i must admit, i didnt cry THAT much. if he were real and i had gotten close to him, i KNOW i would cry.