My vote goes to the Grotto pool at the S/D.
The kids all seem to love playing under the waterfall, plus there's a volleyball net (and somone's always playing, and welcoming anyone who wants to join)
The staff here have all kinds of activities poolside and give out prizes to the kids.
Then there's the daily water polo, which while not quite up to the rules, is lots of fun for everyone of all ages)
Music poolside, all day.
Free use of recreational balls for the volleyball and polo, plus the basketball hoops right next to the pool...
I like the spring pool....
Yeah...my vote goes to the Grotto