IMO, buying from an AD with whom you have/can establish a relationship is generally better, which is another plus for the more modern version. But in the end it really boils down to personal taste, and both pieces are incredibly classical and full of Patek DNA, so you can't really be wrong.
Just keep in mind that the 5119s are being discontinued, so they may not be available for long at your AD...
Enjoy, and please keep us posted!