I am a fan the JLC. Classic, understated, and it is considered a much more exclusive, premier brand than Rolex or Cartier. JLC watches also have better movements IMO... But in terms of resale, Rolex and Cartier will fare better because people tend to go for those "better known" brands... I put the " " because your regular person on the street might not know JLC but everyone knows Rolex and Cartier.
I have watches from all 3 brands. Everyone notices my Rolex and Cartier. But when I do I business and need to impress, out comes the JLC.