HI there!
Thank you for your question.
My family and I stayed at Port Orleans, Riverside this past March and really enjoyed it.
The buildings are all the same. There are different room types in the buildings, such as Riverside River View Room or a Preferred room which is closer to the main building.
HERE is a link to more room descriptions.
You and your family will have a fantastic stay.
I really enjoyed walking along the river down to Port Orleans, French Quarter--there you can hop on the boat for a scenic ride to Downtown Disney!
Have a wonderful vacation!!
Carrie