I really want both to win, but I had to vote for the Paladin because it has three great subclasses that are unique in their own right and VERY playable. I've played in two different campaigns with Paladins so far and one campaign that had two Paladins. The subclasses of Paladin, along with the Fighting Styles, make them unique enough to enjoy side-by-side. I don't think Fighters or Barbarians could do this. In fact, I've only seen people play the Berserker. Having said this, I can't take away the ingenuity of the 5e Barbarian. WotC has made a class that is closer to the 1e Unearthed Arcana Barbarian that was playable and thematic than any other version before it. That's a huge accomplishment and if it beats the Paladin it's no loss.