The most beauitful 5980, IMO.
Best,
Nicolas
I have seen other white dial Nautilaus models (5711A and 5726A), but have not seen the 5980A white dial in person. In looking at photos, the contrast appears a bit off comapred to the blue dial 5980A. However it is a relatively inexpensive way to obtain a PP chronograph watch as the other chrono watches are more expensive. I personally prefer simple watches like the 5711A Nautilus and the 5070/5170 chronotgraph, but that is certainly my own personal preference. As for the Aquanaut, the 5167A is a classic. The 5164A travel time is nice if you regularly travel across time zones.
I would say go for the 5980A white dial if you really want a nautilus chrono and the pricing is reasonable for you as Patek will increase the price of their next Nautilus chrono watch. As for the Aquanaut, I would recommend saving your money and getting the 5167A.