While going through some things a few days ago, I found a recent PP catalog stashed under some books and, when I flipped through, the 5170 stood out for me, like it always does. The vintage vibe is perfect, and the movement is a work of art. It looks even more stunning in person, too.
This led me to consider the 5170's competitors. In my opinion, ALS certainly has one with the Datograph, but it isn't particularly gifted in the looks department, despite the exquisitely-finished piece of art lurking under the hood. I find that the case with many of ALS' watches: they aren't lookers, and the movement is where I focus most of my attention.
That being said, I *think* the price is fairly similar for these two watches. Which one do you prefer? I fully expect the ALS to win in a landslide victory, given the obsession around here. I'm hoping we can generate some good discussion, not something like "ALS because it's an ALS," or "PP because it's a PP." Try to consider the whole package as well. Not just the movement.