From what I understand, the PF, among other things, has a correct shaped bezel, but the PPF has a fat bezel. But there are lot of people here that are far more knowledgeable on the subject then me
Yup, from my limited understanding and research, the PF bezel has more gen-like proportions at the brushed vs polished section whereas the PPF's bezel proportion has the brushed surface a little bit too much. Interesting that the overall dimensions are still the same.. Second would be the crown - PPF's crown sticks out of the crown guard too much as compared to the PF.
Hence it comes down to whether you wish to buy a PPF with the better aesthetics, and have the case modded or buy a PF base and swap the dial + hands to PPF ones. (and datewheel if avail)
Of course if you want it to be as gen-like as possible, then you'd still have the case modded (whether PF or PPF) to achieve a better shaped beveling.
I stand corrected in advance if incorrect, and am happy to learn from members who have more experience in this subject.