Well first off ALL units at OKW have a patio or balcony, no matter the location or floor. Some of the nicer water views are in bldgs 45, 46, and 55. Bldg 34 and 35 have nice golf course views. It is unlikely you will receive a room in bldgs in the 23 to 26 cluster, or 11 to 14 near Hospitality buildings, as those are in a booking category specific to DVC reservations. If you want to be close to the main pool area, buildings 15, 16, 62, 63 and 64 are nice alternatives to the near Hospitality category. However, buildings 62, 63 and 64 are the only buildings with elevators and are often used for those with mobility issues. The rest of the resort was built prior to changes in the ADA which required elevators. However, the stairs at OKW are a gentle rise of 1/2 flight, a landing, and another half flight...not a difficult climb for a healthy individual of any age. The game room, sadly, is pretty small. But there are some great childrens activities available at the community hall in the main pool area, see the paperwork/news flyer you receive at check-in for info on activities. There is also a movie, weather permitting, projected onto an inflatable screen in the main pool area at night, weather permitting. All the pools have childrens play areas and jacuzzi tub for the adults. Also, located in the base of the lighthouse by the main pool, is a sauna. Olivia's is, IMO, one of the best family friendly dining choices at WDW, and being connected to Disney Springs by watercraft gives additional family dining options. The only real differences in two bedroom units at OKW is that buildings 11 to 29 will have only one entrance to the master bathroom, if anyone is sleeping on a fold out in the the living room. That entrance is through the master bedroom. Buildings 30 and above have an additional entrance to the master bath through the laundry room. OKW has full household size washer dryers in every one bedroom and larger unit, On a cash reservation, they should provide you with laundry detergent along with your daily housekeeping. The dining room table will seat 4 people, and if you prefer to dine al fresco, there will be (assuming it hasn't changed with the rehab) an additional table with four chairs on your balcony/patio. If you are placed in a two bedroom lockoff vs a dedicated two bedroom, the 2nd bedroom will have its own small balcony, and a kitchenette. Dedicated two bedrooms will not have the small balcony, and will have additional closet space instead of the kitchenette.
There will be a large jetted tub in the master bathroom, along with a dedicated stall shower, and of course, toilet and wash basins. Sleeping areas will include 1 king bed in the master suite, a queen size fold away couch in the living room, a single size fold away sleeper chair in the living room, and two queen beds in the 2nd bedroom or lockoff studio. There is a full service bar, Gurgling Suitcase, behind Olivia's in the main pool area. Surrey bikes can be rented from Hank's Rent and Return in the main pool area. Like most Disney deluxe class resorts, the offerings for counter service at Good's to Go snack bar are OK, but quite limited in selection.
I hope you have a wonderful trip and enjoy OKW.