AP RO is great watch, but too many versions, and way too common.
PP Nautilus is great, but except for the 5711, all the others are way too expensive. Also, 2016 is the 40th Anniversary of the Nautilus, so expect some changes.
VC OS in a sense is rarer then the above two, and in this bracket of high-end watches, especially when compared to the Nautilus, is well priced compared to what you are getting. Both the time-date only OS and chrono in SS are well priced (list price that is).
The date at 4:30 was an issue for me, but I have grown used to it. I do not think they could incorporate a date at 12 like the previous version, and this version being more rounded, it would not look as nice. I think some designs are created as to age well into the future, and they will become the next icons over time. This is also true with auto design. We do not like something now, but love it few years later.
I think both the time-date only and chrono (sorry for not using calibre numbers - my apologies to Alex / Dan), in SS / Blue dial look great in pics. My friends who attended SIHH shared pics with me and I really like both. And both have a transparent caseback.
The defining charecteristic is this: If you want a sports / versatile everyday watch (not a gold / platinum dress watch), but do not want Rolex / Omega or even AP RO, then there is nothing Better and Rarer than this handsome new third generation VC which is not so loud, yet has a transparent caseback.
I know many gave negative comments, but these will age well.
The new OS will bring a lot of new / younger clients to the brand. And over time I am sure we will see black dial / grey dial / titanium case / guilloche black dial / etc. etc.