Rachel Elizabeth Dare (The Oracle of Delphi):
Ravenclaw!
Rachel's in competition for my favourite character. I love Percabeth completely. Percy was meant for Annabeth. But Rachel deserves love too. She's the adventurous, snarky mortal you'd all want to be if you were Mist-Seers.
So, why Ravenclaw? It values creativity and imagination = She's an artist. And intelligence and Rachel is clearly smart. I hate it when people label her the 'pretty one'. Maybe she's not a math genius like Annabeth, but she's thoughtful and knowledgeable: knowing plenty about Greek mythology and remembering entrances to the labyrinth off the top of her head.
She's insightful and observant: Instantly sussing out the situation with Annabeth and understanding Half Blood life. She's witty and can out-argue anyone, and when Percy asks what her hobbies are, what does she say? "I read a lot." No brainless bimbo material here.
Plus in Ravenclaw, she can have to most epic snark wars with Nico. Oh gods, can you imagine those two? The world will explode with amazingness.
Be careful Hufflepuff, you might have competition.
Grover Underwood:
Hufflepuff!
Oh, Hufflepuff might be in the lead for the coolest house now.
The loyalist, strongest, kindest satyr - ever. He saves everyone he can, never backs down and even when facing his deepest fear underground, he won't leave his friends. Plus he and Percy can hang out in the Huffle's common room and be awesome together.
Tyson:
Hufflepuff!
While Tyson is brave, I think it's easy to class heaps of PJ characters as Gryffindor because they have to be brave in their situation. Tyson stands for much more: Loyalty to his family - Percy and Frank. Hard-work in making swords and working in the forges. And faith - even when he was living on the streets, shunned and abandoned he still fought for survival and believed things would get better. I believe that endurance is a very Hufflepuff trait and should be recognised. Tyson personifies this house perfectly.
Chiron:
Ravenclaw!
This decision summed up in one word: Wise. Chiron's been advising, mentoring and guiding heroes for two thousand years. He knows when to be truthful, when to lie, thinks up massive tactical plans and plans and plots to save the world. He is one cool centaur.
Ella:
Ravenclaw!
She spends her time hiding in libraries and memorizing books. Ravenclaw wouldn't let her get away.
