We have stayed at POR, CBR, and CSR. We loved POR and CBR. These resorts are pretty similar. Both are spread out so you could have some walking, but it has never been that bad. This makes these resorts very quiet. I enjoyed walking around them both. Both have main themed pools and several private pools. Both have food courts and a sit down restaurant. The rooms at CBR are a little bigger than the other moderates. Both have two sinks.
CSR is similar to POR and CBR in that it is also spread out, has a main themed pool, (probably the better pool of all the moderates), is also quiet, and has a food court and sit down restaurant. I didn't care for the food court here. (We haven't eaten at any of the sit down restaurants so can't comment on those). The rooms are comparable to the other moderates.
One difference is that CSR is a convention resort. Can mean less crowded buses. Also, has a gym for resort guests. There is an automatic 10% gratuity added on to food court meals because there is someone who gets you drinks. The bar can often be full of conventioners, (it is right outside the food court with no wall to seperate the two), and they can get a little loud and sometimes crude. There is only one sink in the rooms at CSR.
All the moderates are beautiful and peaceful.