My wife and I stayed at the Port Orleans French Quarter resort in January and we were thoroughly impressed. Although POFQ doesn't have a sit down restaurant, we found the Sassagoula Floatworks counter service restaurant there to be very satisfying and affordable. For transportation, Disney buses go to POFQ first, then to the other stations of the Riverside. In my opinion, the pool at POFQ is better that the Riverside as well.
We're going back to WDW in January and are staying at POFQ again even though we were tempted to try staying at the Riverside. Either way, the walk between the two resorts is about 5 minutes and there is boat service connecting the two.
Either Port Orleans resort you choose would be good but if you want to be close to the good stuff, POFQ is my preference...