Hi, Andrea!
With a family of 5, the first resort that I thought of was
All-Star Music. This resort, although a Value Resort, has Family Suites that would be perfect for you. It has a master bedroom with a queen bed, and a living room with several pull-out sofas. The suite sleeps a total of 6 guests, so you would have plenty of room. In addition, each suite has 2 full bathrooms, a kitchenette, and 2 TVs so no arguing over which channel to watch!
If you wanted a Moderate Resort, a great option would be
Port Orleans Riverside. With a family of 5, you would be able to get a room with 2 queen beds and a bunk sized pull-down bed so there will space for everyone to sleep comfortably.
Good luck deciding on which magical resort will be your "home away from home" for your Walt Disney World vacation.
Cathy