I just made a reservation for my brother's family, and he told me to pick a location. They also have kids, and will be using the bus stop. So I requested top floor, near the Peninsular Road bus stop.
Top floor means a couple of flights of stairs, which he said he was OK with. But it also means that you've got a better shot at a good view, there's nobody running on your ceiling, and you won't get a handicapped accessible room.
Peninsular Road is nice becuase it's the first bus stop on the way back from the parks. So when everybody's exhausted at the end of the day you get dropped off first. It's also a real short walk across the bridge to the main pool, the Hospitality House and Olivia's. And the Hospitality House bus stop is the last stop on the way to the parks. So if you play your cards right you never have to ride a bus around the resort.
But OKW is my favorite, and anywhere they put me is fine with me!