Why not PP? Like PP Nautilus (correct spelling or not?)?
If I were complete the "holy trinity" then I would get the PP Nautilus, VC Oversea Chrono or Automatic and AP RO. All these are Gerald Genta designs as well. While at it, you can also throw in the IWC Ingenieur which is also designed by Mr. Genta. Then you have "holy trinity" and "genta classics" with only 4 watches!
But being an unfocused person that I am, I will stray from this path and get some other weird stuff. Moreover, favorite watch is probably a A. Lange & Sohne. Compared to Lange, PP design is too formal and staid.