I stayed in OKW from July 8 to 15 in a 2 bdrm villa with my wife, in-laws, sister-in-law, and our 5 and 7 yr old. The size of the rooms at OKW made the difference. The kids slept in the hide-a-bed in the main room and we could hang out in either bedroom and were all very comfortable. We stayed in the Turtle's Pond area and that pool and play area was very comfortable and never very busy (rarely more than 15 people at the pool).
The main pool area is probably more fun for kids, but we never spent more than 30-60 minutes at the pool (in the parks mostly) - so it didn't bother us and my kids just loved to swim in a pool (we brought swim vests for their pool time).
I don't know SSR, but I can't imagine that any other hotel would have rooms as big as the OKW 2 bdrm villa.
I would go back to OKW.
DAn