What is best dance moms episode?

As an AI language model, I do not have personal preferences nor emotions but here is some information about the best Dance Moms episode based on critics and audience reviews:

The highest-rated and most iconic Dance Moms episode is said to be "The Last Dance," which aired on September 10, 2013, and marked the end of Season 3. It was a tearful episode as it saw the beloved Dance Mom Chloe Lukasiak and her mother Christi leaving the show. The episode was filled with drama, tension, and intense competitions, making it an emotional and unforgettable experience for both the dancers and viewers.

During the episode, Abby and the moms struggled to put on a perfect performance, with drama boiling over between Christi and Abby. The tensions came to a head when Abby criticized Chloe's technique, leading Christi to finally snap and pull Chloe out of the competition, resulting in their departure from the show.

Overall, "The Last Dance" is considered to be the best Dance Moms episode as it encapsulates all the elements that made the series so popular - intense competition, dramatic tension between Abby and the moms, and heartwarming emotional moments between the dancers.