I spent many hours wandering in many sites related to Poser/DAZ Studio, it seems that DAZ's Victoria 4 is the most popular character.  I see her everywhere.  Sometimes I think Miki or Terai Yuki should be popular in Japan, it seems not the case.  I really wonder why it is the case.

Is it possible to have another character to be that popular?  What make Victoria 4 so popular?  Why contents creators choose Victoria 4?

Will a "non-commercial" character become such popular?