There is a lot of information on
www.portorleans.org about both POFQ and POR. You might want to visit that website.
Riverside (POR) is a few minutes walk along the river from French Quarter (POFQ). It is a 'sister' resort which means that you can use the amenities at both resorts regardless of which one you are staying. If you are staying in a royal room you will be in one of two 'mansions' - Parterre place or oak Manor. Parterre Place is a little bit further from the main building/themed pool than Oak Manor. It is closer than Oak Manor to POFQ but the mansions are on the opposite side of the river, so once you cross the distance is really about the same, I think. Oak Manor and Parterre place have a quiet pool and laundry facilities between them. We really like staying here. All the rooms are the same size.
The Royal Rooms are beautiful, with over the top "royal' theming in the rooms. The headboards on the beds have a button that you press for a 'fireworks' display that lights up and is quite pretty, but short. River view rooms have nice views of the river, but you have external walkways outside your window, so you mostly see the 'view' when leaving or coming back to your room. You might want to request a room closer to the main pool or closer to the small footbridge that is between the two 'mansions'. take a look at the maps online and decide which area will work best for you.
The food court at POR is much larger than the one at POFQ and we like it better. There is also a TS restaurant available at POR. POR has a horse and carriage ride that you may like as well as surrey bike rentals. The paths and grounds are gorgeous at POR!
Some people dislike the multiple bus stops at POR. We have never had a problem with them, but it depends upon how you feel. You are also able to use the POFQ bus and walk back to your room from there. We have done that on occasion when we wanted to pick up some beignets from the POFQ food court.
POR is an awesome resort! We prefer it overall to the POFQ, despite the larger footprint.
Enjoy!!!!