From what I understand the bus situation at POR is better than CBR. We will be staying at POR for the first time in September and have never stayed at CBR, only POP. However, I have researched this topic extensively in hopes of best accommodating all members of our traveling party. To answer one of yours ?s, POR is smaller than CBR, and it also lacks the huge lake in the middle to maneuver around.
Here is what Josh at easy WDW has to say about transportation at moderate resorts:
"Best Transportation
- Port Orleans French Quarter Resort
- Port Orleans Riverside Resort
- Coronado Springs Resort
- Caribbean Beach Resort
French Quarter and Riverside sometimes share buses, particularly to Parks other than Magic Kingdom. French Quarter has the advantage because it is picked up and dropped off first for all destinations other than Downtown Disney. This usually guarantees French Quarter guests a seat on the bus and the the resort only has one bus stop, which makes it easy to navigate to the correct line.
Despite being picked up and dropped off after French Quarter, Riverside benefits from having above-average bus service. Waits are usually shorter at both Port Orleans resorts than they would be at the other Moderates. The Port Orleans Moderates are also somewhat centrally located, which means relatively short bus rides. Finally, the Port Orleans resorts both have a dock with boat service to Downtown Disney. The ride is scenic and it is the preferred transportation method when heading Downtown.
Both Coronado Springs Resort and Caribbean Beach Resort have 5+ individual bus stops. If you get on at one of the early stops, you’ll be more likely to get a seat (rather than stand), but you’ll also have to wait for the bus to circle the resort as it stops at the other six-or-so stops. Getting on at the final stop will lessen your transit time on the way to the Park, but will also result in you standing more often than not due to people boarding on previous stops taking the seats. On the return trip, you’ll also have to wait for the bus to stop and let off guests at all the preceding stops as well. With no watercraft transportation, it’s easy to rank it below the Port Orleans properties.
Coronado Springs Resort comes in third because the buses are usually empty if the resort is full of conventioneers who aren’t visiting the theme parks. The problem is that the conventioneers will probably go to the Parks at least one day and Disney isn’t that quick in upping the amount of buses necessary to service all the additional riders. This can lead to long waits and crowded buses, particularly to Downtown Disney in the evening. Coronado is also a bit more remote with longer transit times to Epcot, Hollywood Studios, and Magic Kingdom.
Caribbean Beach has the worst transportation of the bunch. Waits tend to be the longest of the Moderates and it also takes the longest for the buses to circle the resort to pick up and drop off guests."
http://www.easywdw.com/resorts/best-disney-world-moderate-resort-hotel/
Hopefully, that helps! I hope you and your family have a wonderful trip!