How about any cabins in a corner on ships where the side isn't smooth? For example, we stayed in 7155 on the Spirit and liked it because the balcony had a better view when looking aft. I know there are other cabins similar to this on many different ships and they are easy to spot on deck plans.
Also, on Spirit class ships, the deck plans show a few rooms that look like they have much bigger balconies because of their odd locations near elevators. I haven't stayed in one but maybe someone else can confirm it. Theses rooms are 5236, 5238, 5245, 6232, 6234, 6281, 7258, 7260, 7303, 8232, 8234, and 8239.
Lastly, also on Spirit class ships, there are rooms at the front of each deck where there are connecting balcony/interior cabins. Families could have the cabins connected instead of across the hall.
As you might be able to tell, I know way too much about the Spirit class so I'll stop typing now...I hope this helps.
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