I started my paladin almost the same time as Goire and now I'm about to hit level 28. I probably play more but I'm only playing 2-4 hours a day and I'm really ahead. I even passed Venn and I remember him being level 24 when I was only level 7. I'm thinking that paladins have a much easier time killing and finishing quests since I have no downtime whatsoever cause I'm focused on melee damage and can heal myself. I'm only using mana for healing and buffing so that might be a benefit. Warriors have trouble since they have to eat to heal and most other classes need downtime for mana recharge ( priests, mages, warlocks). I don't know how fast hunters can level but a paladin sure has a lot of advantages. I hardly die cause I can cast Divine Protection and Blessing of Protection when I can't handle a mob. Also got Stun and Blessing of Freedom when I need to run away.