It depends on you taste. We personally feel more at home at PO-FQ. We like the small feel, the food court, and everything being very centralized. Plus, we can still take advantage of the amenities at PO-R, by just hopping on the shuttle boat.
As for CSR-- we have yet to stay there... it just doesn't appeal very much to us. It is SO spread out, and we are just not into the 10% surcharge at the food court. We can get our own drink refills, and don't mind plasticwear, thank you!
Even though, yes, it does have a coffee maker (we don't drink coffee), room service (we never use it) and a gym (who has time at Disney anyway?)... we find that it caters to the conventioneer, which is great... but we don't go on vacation to hobnob with the conventioneers.
The pool to us would be the only great draw... and that is due to the slide.
So, for us, Po-FQ would be a no brainer!