The youngest will be 14 months, not technically an infant but not old enough to count on the occupancy rule I would think?Unfortunately I'm not sure you're eligible for a 1BR based on the number of people staying with you (DVC states that a 1BR sleeps up to 5). Are any of the children infants? Those don't count as I've gone through that experience personally.
Regarding the 2BR units for 2 nights, checking in on 11/16:
Lake View - 92 points
Theme Park View - 114 points