Honestly, I liked Port Orleans French Quarter much better than Port Orleans Riverside. A lot of this may have had to do with the renovation process--when I stayed at Port Orleans French Quarter (just recently) it had just been renovated and was gorgeous. The room was very pretty and clean, the whole resort looked wonderful. Everything was close together, accessible, and I loved the theming. The food court had great food and we loved the freshly made beignets.
At Riverside, we stayed in Magnolia Terrace, just before it was renovated, and it was pretty beaten up (though I know they've just redone it--it was actually redone just weeks after our stay). The beds were not very comfortable and the common areas looked worn. There were housekeeping issues in that there was a loaded ashtray and half full cup of beer left on the bench outside our building for our whole stay...it wasn't that great of someone to have left it there to begin with, but I was too grossed out to pick it up myself and it bothered me that that area was never cleaned up. I felt it was quite a walk to everything from our room--especially if I just wanted a drink refill and wanted to head over to the food court. It could've been chance, but I don't remember the food being very good at the food court and I thought all the food we got at POFQ was delicious. We never tried Boatwrights. My son had fun in the Ole Man island pool but we still liked the Dragon at the POFQ pool better.
Overall, I liked POFQ better, hands down. I was never going to stay in a moderate again after our mansion stay, and then I tried the FQ and liked it better than many of the Disney deluxes we've stayed in. Of course, now that the POR has been renovated it might offer a very different experience, but personally, I just don't understand those who prefer POR over FQ (I was on these boards back when I was deciding, and had plenty of people recommend the mansions...). I just think POFQ is soooo much better!!!
Who knows, maybe I should give the mansions another try now that they're redone...I feel bad putting them down so much...we just didn't enjoy our stay much there and didn't find the resort very conveniently designed nor well maintained.