Another important thing to note, is that pool hopping for DVC members is restricted during the busiest times. I expect that around July 4th would be one of those times. Perhaps this post would be more appropriate on one of the DVC boards.
For the OP, it would be best to check with the destination pool before heading over there. If they are allowing us DVCers to hop there that day, then they will be able to tell you. And if not, you can make other plans.
As for my fav' pools on property, one would be Luna Park at BWV, since that's where we usually stay. I also love the pool at WL. But for the money (since it costs to get in) my favorite pool on site would be over at Typhoon Lagoon, the pool at the end of Crushin' Gusher. The wave pool is fun too, but a bit crowded.