Resort size, POFQ is compact. I have not stayed but family has. They were OK with the resort but not much Disney theming. I have stayed at POR and CSR. I love the POR resort, but the buses are the worst on property. People will argue that with me until they are blue in the face. We lost an entire day of a 7-day trip waiting on buses for POR. It was so bad we started using POFQ and walking back to POR.
CSR in my opinion is the best Disney moderate. There are several reasons. Even though you are usually at the back of the resort, getting to the lobby is simply jumping n the first bus and riding it to the front. The buses were almost as fast as Pop, hardly ever crowded, and always running. Because it is a convention resort, it can sometimes be crowded at the QS restaurant. Never crazy busy, but just more noticeable. It also has a much better selection of food but that comes with a slightly higher price too. The pool area is one of the best on property. It is never as crowded as other because conventioneers don't go to the pool. That means about 20-50% of the resort are not pool goers. CSR is minutes from AK (5 minute drive), DHS (5 minute drive), and Epcot 8 minute drive). MK (~15 minute drive) is a little bit longer as is the case with all moderates.