Here's another fun thing. Which houses would the different PJO characters be in?
I'd place Annabeth, Malcolm, and Reyna in Ravenclaw. Jason's either Ravenclaw or Gryffindor. Percy's a Gryffindor. Hazel and Frank and Hufflepuffs. I'm not sure if Leo's a Hufflepuff or a Gryffindor. Octavian's a Slytherin. Hylla would either be in Ravenclaw or Slytherin. Luke's in Slytherin. Thalia's definitely a Gryffindor. Contrary to popular belief, I don't think Nico would be in Slytherin. I'd put him in Gryffindor or Ravenclaw. Will is definitely a Hufflepuff.
Additional: What house would you be in? Based on Pottermore, I'd be in Gryffindor. Kai's in Slytherin.