I think it is a toss up.
CBR has, I think, 6 internal stops before heading out.
PO counting both POFQ and POR has 5 stops I think... 1 at POFQ and 4 around POR.
It has been a while since I have stayed at either of these but I never really felt inconvenienced at either.
I would say that CBR is closest to AK and DHS. PO may be closer to Epcot. The MK is about the same for either.