Esfand has proved Ret Paladin can do DPS. Many guilds are treating Ret’s a lot better than what happened in originally vanilla.
Protection Paladins or Reckoning Paladins are most PvP hybirds and when phase 2 happens they will either be the must have healer or a dangerous foe to mess with in the vanguard,
Holy Paladins are the most mana efficient healer in Classic.