This is hard :P. I mean it, for one, depends on what do they mean by house. Like a literal building house or a team house. Building house can make me think of different things. Are we having a party (what kind of party?) with the ponies in the house or are we staying with the ponies in that house?
So.......
Sports Team - 1,2,4,6.
Party - 6 (Party Party), 2 (Slumber Party, Reading Party), 4, (Slumber Party), 3 (Reading Party)
Live in - 1,4
Also, these are odd character choices. Are they just randomly chosen and thrown into houses? And why did they write AJ's name in two words.