I don't play RPG-like games but I used to nickname my Pokemons after characters I liked - and if my favorite characters had changed, I just started the game all over.
And I've done personality quizzes by answering questions like Jason would (in my opinion).
Jason is a Gryffindor, by the way. I even tried to rig the quiz so that Jason is a Ravenclaw - he still was a Gryffindor.