I've stayed at CBR and POFQ, and enjoyed them both too. I haven't stayed at POR, so I can't comment on that.
As has been said, POFQ is much more compact, cozy even. There is much less walking around needed to get from your room to the food court/bus stop/etc. However, POFQ does have the advantage of being 'sistered' with POR (and vice versa) so if walking is your thing, you definitely have the option to roam around. You can also go to the opposite resort to eat and whatnot, if you want to.
I agree, the boat ride to DTD is a big plus. I really enjoyed that trip, especially at night. Passing the treehouses in the dark was just super cool (ok, so I'm easily amused).
POFQ is close enough to hear the fireworks nightly from DTD, but I'm not sure you can see them. I never looked though. I would imagine that the more remote parts of POR wouldn't be able to see or hear really, but that's just a guess.
I think you'll have a good time regardless of which resort you're at (POR or POFQ). I definitely liked POFQ as much as CBR, and would love to stay there again someday.