*Getting back to the original topic; I think it's a given that Vicky in her various incarnations is the most popular Poser figure.  Why is this?  Is she more versatile than other figures, do people like her 'look' better than others?  Is it better, or more pervasive, advertising?

For my part, I use Vicky because I like the 'look' she gives and the amount of clothing and props available.

I agree.  What I'm wondering though is just how big can Vicky's boobies get?