My absolute favorite episode from Legends of Awesomeness is Eternal Chord. However, my absolute favorite line out of all three seasons takes place between Po and the main villain, Kira,  featured in The Way of the Prawn....

<after Po's acted like a goofball for the past minute>

Kira: What are you doing? Stop that!

Po: Ooh, look at me! I'm a stupid clam! And I'm gonna' conquer China with my...clam clan! Clam clan clanny clan clan clan!

Kira: You are making a fool of yourself. You have no honor!

Po: And you have no lips....