Board Thread:General Discussion/@comment-26347196-20160108180825/@comment-27524978-20160130053234

Obviously the pacifist family ending.

Not only does that ending add alot of character development for Undyne, since she went from wanting to destroy the entire human race to actually putting herself in Frisk's shoes and understanding why they had to fight Asgore, but it gives off a feeling of hope. It's one of the most emotional scenes in the game in my opinion.