We’re only three weeks into the current season of Mad Men, but the show has already delivered its fair share of buzzworthy twists and turns. Perhaps the biggest shocker of all, however, is that Don and his significantly younger new wife Megan seem to be doing, well, okay. Who would have guessed that lying, cheating Don Draper would be part of the healthiest marriage on the show? But that’s less of a testament to Don and more a reflection of the absolutely miserable unions most of Mad Men’s characters have endured. Some have fared better than others; we’ve ranked the relative health of each marriage below. Fair warning, if you’re trying to catch up on the show, this will absolutely spoil it for you!