WWoS has an area called "The Sports Experience" (or something like that); it used to be "The NFL Experience." It is a big tent area; inside the tent they have some picnic tables, a small putting game, and a big screen TV. Outside, at each end of the tent, they have some sports activities. On one side they have a few basketball backboards, a small kids climbing area similar to what would be in a fast food restaurant, and an area where you can throw baseballs and time the speed of your throw. On the other end they have a little football obstacle course, a small soccer area, etc.
We took our kids (DS-10, DD-6, and DS-4) there last June. Out oldest is a definite sports enthusiast. It was incredibly hot and seemed even hotter at that place. We were the only ones there most of the time. A CM played basketball with our oldest, and they had a pretty good time, but it was too hot to do it for long. The football pass machine was broken, so the kids couldn't play with that. We probably stayed about an hour and played around, and it was o.k. but nothing great. We had some kind of special 10-day tickets, and WWoS was included; I'm glad we didn't use a Plus Option for it though. Also, it was a pretty long walk to get to the area which also gave the younger kids something to gripe about.
If the activities sound interesting, you have extra time, and you have a pass which gets you in for free, it might be worth giving it a try. Otherwise, in my opinion, it's not worth the time or money.