Our family votes are:
#1, Storm Along Bay at the BC/YC tied with the Grotto Pool at Swan/Dolphin.
Although the Grotto gets #1 from me for two reasons. The kids don't have to leave the pool area to access the slide and I can always get a lounge chair!!
#2, Polynesian Volcano pool, my dd's love the slide and the kids activities so this is a very close second
#3 and ITA that the best Moderate pool is CSR, great themeing and a fun slide.
TJ