It is one of my favorites, if not my favorite. Its hilarious and offers such a better view of the FireNation group. We get to see them as actual people. Its so easy to say "oh they're the bad guy" and hate on them as evil and bad...something I rarely do but found myself with the series. But, this episode shows them as real people with feelings and reasons and history. It explains why they are who they are and it makes me unable to say any of them are "the bad guy". It makes them 3D.

EDIT: ...or, do I mean 2D...?