To a lesser extent, Gene Wilder's original ending speech. Sure, there are a couple comedic zings, but the innocence and heartfelt friendship that Leo has for Max are made evident at their fullest in this scene.
Leo Bloom: No one ever called me Leo before! I mean, I know it's not a big legal point, but...even in kindergarten they used to call me Bloom. I never sang a song before. I mean with someone else, I never sang a song with someone else before. This man...this man...this is a wonderful man. He made me what I am today...he did.