We've stayed at PO-FQ, CBR and CSR (among the moderates). We enjoyed each visit, but CSR is our favorite. We like the Pepper Market food court's menu choices, real plates and silverware, and partial table service (they refill drinks and such). The pool is huge and fabulous. The grounds are beautifully landscaped in three distinctive themes. Bus service is very good.
The biggest issues raised about CSR are the presence of conventioneers and the distance to El Centro if you are in the Ranchos area, but neither of these were a problem for us.