We stayed in a lodge tower room 2 years ago.
We had a 2 yo and enjoyed the extra space, but I'm not sure I would pay for the extra room if it was just 2 adults.
All of the lodge tower rooms are "interior" facing. Our room in Conch Key overlooked Narcoossee's and had a distant view of the bay and the Contemporary resort. If you are in Boca Chica or Big Pine you will overlook the pool, and if you are in Sago Cay you will overlook the marina. Sugar Loaf is the concierge building, and believe you have to book a concierge rate to get one of these rooms.
There are no "extra" amenities that I can remember, just more space, large windows, and a long balcony.
Hope this helps.