Easy to name a favorite, easily the P for its magical dial.
Now I find it to perhaps be a bit of a missed opportunity to make the other three with similar guillouche dials. There are so many interesting patterns and colors to play with against respective case materials. Now if I owned the P and had to order the remaining three I would go RJG. Simply as the Rose adds an element of warmth and the J an element of history with its Vintage appeal and finally the G. The G I put last in this exercise as against the P it loses out. Would rather add a different case color for variety and really find both R and J nearly equally appealing. But perhaps the R comes out a hair ahead.
Thanks again for the summary! Lovely pictures and reading.