It's a Dangerous Business, Going Out Your Door/Heartwarming


 * Rarity and Rainbow Dash's discussion before going out to herd the konagas, where they reveal how much each has grown closer to the other, and Rainbow tells Rarity to call her "Dash," like all her closest friends (except Applejack, for some reason).
 * The fact that Rainbow and Applejack are Vitriolic Best Buds is probably the reason.
 * When the World Serpent had all three heroes in its coils and they simply prepared for death. What made this a CMOH was that each of them embraced and reflected that their friendship had indeed become something far deeper over their journey. Lastly, hearing Rainbow Dash actually say "I love you." and NOT mean it in the romantic sense brings a meta sense of tragic irony that's almost heartbreakingly beautiful!
 * The informal sequel, "A Day for Spike and Twilight" is mostly a CMOH in its entirety, but primarily the end, where . It's a definite WAFF fic.