1. Peggy Olson
Peggy, without question, is the best at drinking on this whole damn show. Especially as she moves up at the firm, she consistently drinks during and after work with the rest of SC&P -- yet she still gets things done. While the men are consistently sloppy, Peggy drinks like a champ. Have we ever seen her throw up? Pass out? Pee herself? No, no, and no. Yes, there was the whole "I’m Peggy Olson. I want to smoke some marijuana," thing, but like, bless her heart (and also, she comes up with an idea for Bacardi after smoking, while Smitty and Kinsey have nothing).
She puts it best herself in season five, when she says, "Am I the only one who can work and drink at the same time?" while swigging a beer. Yes, Peggy, yes you are.
Lucy Meilus is a Cities editorial assistant at Thrillist, and has been steadily drinking since 2012 in an effort to get "Zou Bisou Bisou" out of her head. Sympathize with her: @Lucymeilus.