Enjoy! Our family is similar - DH, DD (6, almost 7) and me - and we just did a split stay with 5 nights at AoA followed by 4 nights at the Poly. We loved the Cars suite so much that we weren't sure we really wanted to move to the Poly, but we ended up really happy with the split between the two. The nice thing about the Poly is that the standard rooms have more square footage than standards in most (if not all) other resorts on property, so it really didn't feel much smaller than AoA - though we did miss having two bathrooms. The lava pool, restaurant choices, and monorail access more than made up for that, though, IMO.