[Zauren]

Hmmm. 6 of them stick out in my head.

Spoiler:

1) Hughe's funeral, with Elysia crying of course.
2) Nina's death and Ed's reaction.
3) When Scar was poised over Ed, about to kill him, and Al yelling in the background while badly damaged.
4) When Ed was about to transmute all those people into the Philosopher's Stone and Al was yelling. (He likes to yell at Ed a lot)
5) Ed's scream after inadvertantly killing Greed.
6) When Al ran away from Ed, thinking he was just some creation or tool.

As for which of these I chose (I'm sure I forgot a couple), it would probably be #2. I'd never seen that sort of thing in Anime prior. I must be shielded. ;D