In all honesty, only PP will hold its value over time. Even ALS doesn't come close.
But we all buy timepieces because there is some magic in it when it was on your wrist while trying it out. If we all think about how it holds and retains value over time, we will all be wearing Rolexes. Don't get me wrong, I love Rolex and how it is such a solid watch. But when it comes to pure design and aesthetics, there is some magic about the Lange 1 and the FPJ. How well balanced, and how beautiful it is. The chronometre bleu has caught my eye of late. That being said, I would go FPJ first, then add the Lange 1 later.