Not easy by any means but here is my initial 5 in no particular order of preference....
1- 5650G blue dial. The perfect all round watch to me. Great construction, amazing movement, and useful complications and water resistance.
2- 5950A black dial. The perfect under the radar watch. Incredible movement with very romantic feel to it.
3- 5970G salmon dial. Just impressive piece. And the salmon dial is a stunner. The perpetual calendar chrono is such a centerpiece complication for PP and this is a great piece for that spot. The black P would suffice as alternative but since we are dreaming together lists the salmon would be first pick...
4- 3448G white dial. Just a dream piece. Iconic PP design, timeless perpetual. So balanced and pure.
5- 2523G cloisonnΓ© dial. Pure PP DNA. Incredible piece...
Some modern some Vintage. All white metal pieces but all different dial colors. This fivesome would be pieces I can see myself wear if I had the means!
However to be honest, the first two would be sufficient for me. My perfect two watch collection...