Just went to Sea World yesterday. Though I've never been to SW Orlando, we had a great time. My DD5 wouldn't even think of skipping the water rides. It was cloudy and around 72 degrees. We went on Atlantis first, as the line gets long. We got soaked, not just a little wet. Since we were soaked, we headed to Shipwreck Rapids. We stood in line for about ten minutes waiting for the ride to open and then walked right on. There was no line when we returned to the dock, so the attendant asked if we wanted to go again. Sure, why not. Ended up going four times w/o ever getting off. Not a dry spot to be found, but no worries, we had brought a towel and change of clothes.
Had a great time, DD got to get wet and still had a pleasant(dry) day walking around and seeing the shows.