[Opinions] Re: Lillian or Lilia?
I prefer Lilian to either Lillian or Lilia. I think people would tend to hear Lilia as Lilian. The extra L does nothing, and chopping off the N does nothing either.
If I may play with your list for a moment: Beatrice Lilian Iris? Caroline Elspeth Lilian? Lilian Lucy Maud?