Elisabeth Moss recently revealed her favorite Mad Men episode is season 4’s “The Suitcase” during a Sept. 26 interview with Entertainment Weekly’s “Pop Watch” column. The emotionally wrenching/incredibly drunken episode is set against the backdrop of the May 25, 1965, Muhammad Ali/Sonny Liston rematch for the world heavyweight boxing championship and a Samsonite luggage campaign.  “I felt very flattered and honored to be given that episode. [I’m] flattered that [series creator] Matt [Weiner] wrote it, and, for me, it was a joy,” said the actress, who plays Peggy Olson on the series. “It was just a sort of wonderful bubble of an episode. I relished it and I’m super proud of how it came out.” What’s your favorite Mad Men episode?