I see you are fine with either dial besides both models are about the same price range. Therefore, I think the PP5140P would be it.
Firstly, the white prints over grey background makes the dial more interesting and less bothered by the 'irregular' fonts, hence more pleasing and legible to the eyes.
Secondly, it is in platinum which is king in the patek world and the size and thinnest of the 5140 can make it casual or formal and slips nicely under the cuff.
Thirdly, that would continue your line of Platinum collection.
Best of luck to your decision and we would like to hear what you finally decide. Cheers !