My take on the list (and I have looked at the brands listed at the top of this page and felt free to add some):
Patek=Rolls Royce (sorry, Ferrari is too fancy for Patek
Jaeger leCoultre=Aston Martin (why: a distinguished gentleman's brand)
Breguet=Bentley (I must be honest that I am struggling with Breguet. But I think it is one of the great brand with status, history and tradition, and for that it reminded me of Bentley, but could have been Jaguar as well).
Lange & Sohne=Porsche (technological superiority, but somewhat clinical and perhaps does not always create the 'desirability' of some of its exotic peers)
Richard Mille=Pagani (mesmerising and out of the ordinary)
Audemars Piguet ROO=Lamborghini (exotic and raw)
Audemars Piguet Millenary=Maserati... off course
Panerai=Ferrari (history, Italy, passion)
Rolex=Mercedes Benz (mass production, ultra reliable and built like a tank)
IWC=Audi (vorsprung durch technik ....)
Glasshute=BMW (a bit unconventional / different from the rest, but technologically perfect)
Key question: what brand do we think is the Bugatti? Bugatti is really an exotic car, extremely limited edition and should be compared to a very limited production watch brand, I think of eg Philippe Dufour and then the Grande Sonnerie. It does not fit a brand like Patek which has 100s of different models, as Bugatti has in its past just had a few....