I am not royalist/monarchist so, only on the basis that I think I would enjoy their company and conversation at dinner or in a café, I would choose (and in no particular ordering):
Mette-Marit (with or without Haakon) and King Harald (with or without Queen Sonja);
Charles and Camilla;
Mathilde (with or without Philippe);
Maxima (depending on my mood. I think she will be very good company and is maybe not as loud as the photographs seem to show);
Felipe on a good day;
Maybe Mary/Stephanie/Meghan/Charlene 1:1 because I am curious.
um ........ that is all.
that's an interesting way to think about royals. if thinking about those I like in their positions, I would say those with duty, service, and who are also down-to-earth and don't compliant/don't explain kind of people.
On the other hand, those I'd want to spend time with because I think they are interesting
Sophie of Wessex, Prince Nikolaus and Princess Marghareta of Liechtenstein, Charles and Camilla.