My kids would tell you none of them. Theming is cute but the novelty of that only lasts a few minutes. When we stayed at All Star Sports, both pools were crowded most of the time. We were staying next to the baseball pool and it was literally taken over by a group of 200 or so teens.
If pool is an issue and you can swing it, I would upgrade to a moderate. Coronado Springs has the best pool of that group with a great slide and big hot tub. The moderates (except for POFQ, which is small) also each have several quiet pools that are rarely crowded.