In The Phantom Menace, the entire podrace scene. Yes, it's goofy as heck, but man does George Lucas know how to make some pure campy exciting fun.

In A New Hope, the trench runs. God, they're just SO COOL, especially on a big screen.

In The Force Awakens, Han being rescued by the Resistance, from the time Han Solo is captured to the time Leia shows up, is a masterclass example of editing and music.