User blog comment:Maimer1882/Powers of the 7/@comment-75.18.202.216-20111027015440

Percy because he seems to me the most disciplined and experienced. Powers are only powerful depending on the person who uses it to the best extent, which Percy is obviously the best at. However, if Annabeth is the 7th, shes already better than most of the other demigods and she often kept Percy ALIVE. Maybe Athena will bless her with an unique ability? :D