Kris saying goodbye to his adoptive mother. She starts crying.
S.D. Kluger's wonderful speech at the end about the true lesson of Santa Claus. You can see it for yourself in the middle of this clip:
Poor, misguided folks. They miss the whole point. "Lots of unhappiness"? Maybe so, but doesn't Santa take a little bit of that unhappiness away? Doesn't a smile on Christmas morning scratch out a tear cried on a Saturday? Not much, maybe, but what would happen if we all tried to be like Santa, and learned to give as only he can give. Of ourselves, our talents, our love, and our hearts. Maybe if we could all learn Santa's beautiful lesson, maybe there would finally be "Peace on Earth, and goodwill toward man."
Kris and Jessica's wedding. The real icing on the cake, is the song that accompanies this scene, "What Better Way to Tell You" aka "Wedding Song", which is sung wonderfully by Fred Astaire himself, with backing from the Westminister Children's Choir.
Winter praying for "just a little magic" at the wedding and making all of the trees light up.
So the Winter Warlock has kidnapped Kris and is about to do dish out real punishment. What does Kris do? Does he fight back? Outsmart the Warlock? Neither, he instead decides to give the Warlock a choo-choo train, the one toy he always wanted. Also, doubles as a Moment of Awesome since Kris used natural kindness to get out of a situation.
Sure, the "bark is worse than their bite" joke when applied to trees is ancient, but it's still heartwarming to see Winter make such a lame pun and then laugh at it. His conversion isn't even complete yet, but he has already stopped considering Kris to be a hated rival, at least enough to joke around a bit.
Another Warlock moment is when they escape Burgermeister's prison. During the imprisonment Winter has truly believed he has no more power in him and is a failure. However, his magic corn that he had on him managed to be the very thing that saved them. As they all escape, he lets out a hearty cheer claiming he isn't a loser after all.
The Burgermeister has all Sombertown's doors and windows locked to prevent Kris from delivering toys. Yet, Kris is determined to go back and to make one particular special delivery. Susie, a little girl who is very, very sick has requested a toy Noah's ark and Kris refuses to disappoint her. Even if he hadn't figured out he could use the chimney, the guy's determination is awesome.