V3 still rules in my book. To me V4 is only better in the bending department which is not enough of a reason for me to use her. I've tried to use her, I just never get inspired to continue.
I find I can work with V3's face much more, I prefer the features I can make from her morphs. If you enlarge V3's head, work with her great face morphs (works really well with New Generation 2) & work on her body proportions I think the final look is better than what can be achieved with V4.
Yes, alot of artworks with both figures are easily definable of that particualr girl, but I just don't like the obvious V4. She's not ugly, just not very interesting. In short, V4 to me personally was a huge disappointment.
While we're talking about Daz figures, I can wait for A4. A3 doesn't have as many morphs as I feel she should have but I think she has a great base design to her.