And yes, we can agree on the 3448!!
5170, for me, is just not one I appreciate so much. I think it falls so much in the shade of the 5070 that it suffers by comparison. It doesn't make me "right", but it is my view.
The 5370.....uhm, i think that is a different league. Much depends on how PP treat the other metals as well. The 5070 made its mark not just because of the 5070P, but because all four metals made it a very special reference. It will be fascinating to see how PP deal with, say a 5370R or G? At this point, I think i see the 5370P as the nicest modern Patek of the last 20 years.....for me.....it has everything just perfect.