OKW is our favorite resort so far. It has the largest studios of all of the DVC resorts and it is the only studio that has two actual beds. the others have one bed and one pull out couch. that was fine until son was younger but he has now outgrown the pull out couch.
We always have car when we are there so that removes some of the negatives of OKW, such as size, room location and resort location, for us. We also love the fact that we can park right outside our room.
We tend to request a room towards the back because it is very peaceful. But, again, since we have our own car, it doesn't create an issue for us regarding being close to other ameneties in the resort.
We like having a private pool and hot tub for each section of the resort, along with laundry facilities located at each private pool. You also get a larger patio, or balcony if on an upper floor. The bathrooms are bigger as well, but the sink is in the bathroom instead of right outside the bathroom. But as someone mentioned, there is a second sink in the kithenette that can also be used.
It is a beautiful, peaceful resort. The last time we stayed there we had myself, my wife, my son (age 16) and a friend of his (age 16). We do spend time at the resort each day and we did not feel cramped. With the age of your children, you should have enough space.