Lois going to Ma Kent and admitting how torn up Superman's death has left her.
Ma Kent has a particularly effective one during Superman's "death", breaking down in her own home after having just watched her own (adopted) son die on national television. Not to say Lois didn't have a good one at that moment either, as he died right in her arms having never told her he was Clark Kent (even though she knew it already, she just wanted him to admit it).
Superman's death affecting the many people was heart wrenching, his robot, and the people were saddened, even Luthor was silent though perhaps for different reasons
This troper lost it at "last year for Halloween I dressed as Superman, now I want to do it every year" and started bawling like a baby.
The death of the Clone Superman, telling the real Superman to protect the city.
For me, it was the scene Superman actually sacrificed himself to stop Doomsday. Both this movie and the story it was loosely based on define who Superman is, a man who would fight to death for his adopted planet and everyone on it.
