Luke Skywalker staring at the twin suns setting on Tatooine with the iconic Force Theme by John Williams playing underneath. Just chilling and awe inspiring. Perfect Star Wars moment.
Han Solo flying into the asteroid field in The Empire Strikes Back. Captures that character perfectly. Also one of my favorite pieces of John Williams' music.
Luke throwing down his lightsaber in Return of The Jedi and telling the Emperor, "You've failed your highness. I am a Jedi like my father before me". His refusal to go down the same path as his father, and accept death as an alternative just shows what a bad-ass Luke is and how much he's grown since A New Hope.
Obi Wan in Revenge of The Sith dropping down to fight Grievous and saying, "Hello there". Ewan McGregor delivers this line perfectly and it always makes me smile.
The sound of the raindrops sizzling as they hit Asajj Ventress lightsabers in the Tartakovsky Clone Wars series. It's just cool and I'm surprised no one thought to do that before.
Ashoka Tano fighting the two Inquisitors in the Rebels episode, "The Future of The Force". When the doors open and she comes out with that bright light shining behind her and that angelic music playing... it's just awesome. I love the little wink she gives Ezra too as if to say, "I've got this kid."
Lando's, "Hello what have we here?" line to Leia in Empire. Smoothest man in the galaxy.
The fly by sound of a TIE fighter's engines. One of the most iconic sounds in Star Wars.
The light speed effect. On the big screen it makes you feel like you're being pushed back into your seat.
Last but not least, the ignition sound of a lightsaber. The first time Obi Wan hands Luke Anakin's saber and we hear that glorious sound, it is just magic.