Karen,
Sounds like fun!
While probably any of the Deluxe Villa Resorts would be fine, I think there are some that might be better than others. Here is what I recommend to friends on similar trips;
Because multiple families, especially those sharing quarters, can start to get on top of each other, I think that having an easily accessible entertainment venue is important. Having a distraction where the older kids can safely get away from their parents, where one family can go to get some alone time, or where the Moms can go for a break while the Dads pull baby-watching duty is immensely valuable.
That is why I recommend the
Beach Club or
Boardwalk Villas. You can sneak away to the Boardwalk, Epcot World Showcase, or Hollywood Studios. Of the two I give a slight edge to the Beach Club Villas, for the awesome pool!
A good second choice would be either
Saratoga Springs or
Old Key West, for their access to Downtown Disney. Here I prefer Saratoga Springs.
I am glad to offer any further details on these or other options. Just send me a follow-up e-mail from my bio page!
Have a magical vacation!