Hi Janet,
Welcome to the Moms Panel! Without question, I would recommend staying at Coronado Springs Resort. This by far feels like the most "grown up" resorts in the moderate category. This is a convention resort, so the "kid" amenities, while still there, are more subtle. The landscaping, the rooms, the buildings are all simply gorgeous and even more so in the evening. It is the perfect place for a relaxing stroll, a dip in the pool, or a visit to the lounge.
This resort has recently renovated their rooms and are simply stunning. It was way beyond my expectations for a moderate resort.
My favorite resource for researching the various resorts is
www.allearsnet.com. I suggest you browse their photographs of the accommodations to make sure this resort would suit your taste and be right for you.
I hope this was helpful, have a wonderful vacation!