Hi Elizabeth,
Thank you for your great question.
Disney's Art of Animation is one of my favorites of the Value Resorts, mostly because there is so much to see! When it comes to the family suites at Art of Animation, our favorite are the Cars suites. We just love the decor and bright colors, but the Finding Nemo suites are just as entertaining and fun. Take your pick! Both sets of rooms are located near Animation Hall. Animation Hall is where you would board Disney bus transportation to the Parks. If you'd like to be near the Big Blue Pool, then be sure to book Finding Nemo suites.
If you are booking 2 suites, you can request that they be close together. Just make sure to annotate that when you make your online reservation or when you call the Disney hotline to book your reservation. While a few rooms (like The Little Mermaid rooms) do have connecting interior doors, the suites usually do not since they already accommodate 5 to 8 Guests.
When it comes to crowds at the Value Resorts, September and October will have lower foot traffic. But, keep in mind that the Cars and Finding Nemo suites are both located near Resort pools, so you will have most of the Guests enjoying themselves at all times of the day and night near your building.
I hope that answered your question, Elizabeth. If you have any more questions, please feel free to ask at anytime.
Have a fantastical Disney day!