The Elements of Harmony and the Savior of Worlds/Heartwarming

""Auntie!""
 * A big general one: Anybody who has seen the original My Little Pony cartoon knows the horrors the ponies had to deal with. Megan decided that enough was enough, and poured her heart and soul into founding Equestria, so that her friends would know peace.
 * Even though Blueblood has been shown to be a self-important Jerkass in the show, his blushing while Megan hugs his neck is all kinds of adorable.
 * Plenty of the flashback moments. One good one would be Rosedust agreeing to join the Equestrian Alliance, after Megan has helped deliver Morning Glory's son Blazing Day.
 * Another one is a young Luna comforting Blueblood I over.
 * Megan, Sparkling Dawn, and Blazing Day
 * Morning Glory's family  thanking Trixie for her kindness towards Morning Glory earlier.
 * The flashback to Cadance's "birth"; specifically how it was the Heart's reaction to Celestia's loneliness following Luna's banishment.