We just booked our August trip with friends (8 of us) and requested the same building we had two years ago #26 by Peninsular Road stop. We were on the second floor in a two bedroom, gorgeous view of water and golf green. Walked out our door to the bus stop in like 30 seconds (first stop for drop off), two minute walk across the bridge to Hospitality House, pool and ferry. Great location. Turtle Pond area is really nice too - we liked building 33 there. You can just use the map to see where you'd like to be, or when you check-in, ask which units are available and they'll point them out to you.
Also, if you're not happy for any reason when you get to your room, just go back to the front desk and they'll change rooms for you - we've done this several times and avoided being disappointed with our patio view.
Enjoy - OKW is our favourite! And you'll have so much room for the kids if you're in a 1-2 bedroom!