For this year, they actually have designated houses to tour for the 3- and 6-house tours.I just booked the 3 house UTH tour on Oct. 17 for 3 people. I put in a request to go though 2 houses, Universal Monsters and Graveyard Games, do they usually listen to request?
However.....you may be in luck because I've heard those two houses are usually the ones on the 3-house tour anyway. Subject to change, of course. We did the 6-house tour, and those two were not on our tour.