BarbaraMB... It really depends on your needs. In a dedicated there is no door that goes out to the hallway from the 2nd bedroom. If you have younger kids, this is probably a good thing, my kids were a bit uncomfortable with the door there. If you have older kids or another couple in there, the 2nd door might be nice so that they don't bother anyone in the living room when coming in later at night. The other big difference is with the dedicated you have the possibility of 2 queen beds in the 2nd bedroom, so this could make a difference to you, if you have 4 people in that room or 2 people that are not sharing the bed. If you only have 1 or 2 people that are sharing the bed, the couch is nice because there is more room in there. I don't think the mini kitchen makes that much difference in the lock off since you have the main kitchen.
The balcony situation is really different, ranging from 1 balcony that is 4' X 6' or 3 balconies that are each 4' X 6'. To 1 huge balcony that spans accross the whole 2 bedroom unit. There really is no consistancy, they were determined by the outside appearance of the resort. You will at least have some type of balcony that you can sit on though.