Late to the discussion... I've gone through a lot of phases since turning 18 (or 15, depending on who's reading... dad, I had my first drink when I was 18, I swear).
But for the past three years or so, I've been a rum guy. Dark or spiced only, please. Since going to Jamaica two years ago, I've been a big fan of Appleton & Pepsi with a twist of lime. Yum.