I think they are all nice and it really comes down to which resort has the feel that you like better as well as the layout and size.

Dining wise- Port Orleans French Quarter does not have a sit down option.
I think best counter service is between Port Orleans Riverside and Coronado Springs. I personally prefer POR but CSR has lots of fans.

In the last few years most of the moderates have had rehabs. POR was refurbished with the last year. POFQ a year or so before that and then CSR. I have heard that CBR is being rehabbed now but I haven't seen an official confirmation.