Season four's finale "Whitecaps"; the scenes where Carmela and Tony confront each other over their respective adultery (Tony literally, Carmela figuratively in terms of her confessing to having fallen in love with one of Tony's associates) stands as one of the finest moments of the show's run.
Carmella and Hugh's respective rants against Livia during her funeral after party are two of the most satisfying scenes to watch in the whole series
