g_schroder
325
Wow, what a choice!
Obviously this is something only you can decide, as both options are fantastic watches and both are completely wonderful for very different reasons.
You really can't do much better than a GF from a finishing and execution point of view, and of course a minute repeater world timer from PP is no joke either and tugs at the most traditional heart strings. If the plan is to keep the watch, without seeing both in person, I'd probably go with the PP (I'm surprising myself here) as I think it's something you could wear forever. The GF is a technical masterpiece, but just not something I'd wear regularly from a design/size perspective.
Best of luck with this most wonderful problem.