We just got back from Orange Lake 2 weeks ago and it was our fourth stay there.
We spent time at all 3 of the main pool areas:
West Village Pool: This is where we spent most of our time b/c we could walk there from our West Village unit. (#2305). The pool was huge and the kids had a ball. The adults liked it b/c we could get drinks at the bar. We ate dinner there on Mexican night-I believe it was Wed- and it was delicious. We opted to order take out so that we could eat right by the pool instead of using table service.
Splash Lagoon: Our kids liked the water slide here (short but fun) and the basketball hoop that was in the pool. This pool was by far the least crowded and I think it's b/c the bar/restaurant was only open on the weekends. Our friends that we traveled with have a younger child and there is a GREAT pool there for little ones.
River Island: The last 2 times we've stayed at Orange Lake we stayed in the River Island buildings so we used RI every day. We only went here twice this trip b/c it was the farthest from our unit. We also found it incredibly crowded this trip and a bit stressful trying to keep an eye on our 6 year old. The water slides were a big hit with our 8 year old.
My husband played on both of their golf courses too and had no problems getting a good tee time.
Hope that helps!