I've never done a non-park day but if I did, I'd probably do a monorail resort tour then hop on the boat and do WL as well. I hear the restaurant at CR is pretty good at a reasonable price but haven't tried it since it was the Wave.
Not a huge fan of DS, I can shop at home or go to Atlanta if I want high end shopping. But I seem to be in the minority there. I dropped in to see what all the hype was about a couple of trips ago and after a few hours said nope, not for me.
The sky-liner is o.k. again not as huge a fan as others. If you are staying on property, you could take a bus to HS and hop on it there and get off and each stop and tour the resorts on it. If you've never been to AoA and you have kids, the grounds could be fun for them to see. RIV is pretty and I hear it has some good food options. I've eaten at Topolinos and it was a fine meal but probably not something I'm going to do again until I've eaten everywhere else. I can't see it taking longer than 3 or 4 hours so you could still get your pool day in.
Before I had stayed at 80% of the resorts on property, I would take a half day out of each trip and do a resort tour and go to two or three. I'd just hop on the first bus to arrive and go from there.