Not so much a preference, but stay away from 9 & 10, as they are right by the door leading to the next car and therefore tend to be a bit noisier. This is especially true when people open the door to pass through. On the lower level I'd try to avoid room 14, which lacks the extra window facing the hall. The only way to see out into the hall is through the door. All other roomettes have both a window and the door. It can also be noisier in 13 & 14 if the family room is being used by a family with screaming kids.