It depends on what's most important to them....if they want to be close to the main "dig site" pool, I would recommend the cabanas section....we have stayed in cabanas, building #8A before and loved it...it was the absolute closest to the main pool and a very short walk to the parking lot and bus stop #4....cabanas #9B would be closer to El Centro and the main bus stop, but, still not too far from the main pool....the casitas would be closer to El Centro, but, can be a pretty good haul to the main pool....I guess it just comes down to what's more important to them...the rooms are all the same on the inside, only the theming on the outside of the buildings are different...