I like the P4 Infants because they are lightweight on my computer processor.  Not very realistic.  Fine for fantasy and cartoony things.

I got the Millennium Baby, but he/she is a little bit of an ugly one.  Got some third-party non-DAZ commercial and free items for that one.  Ugly.  There, I said it again.

Succumbed to getting the Millennium 3 Baby.  Nice and sweet faces with morph sets and poses.  Not very much more in terms of attire and such.  Best for realistic type renders.

Eternal Hobbyist