I may be a bit biased since
Estelle is one of my favorite names but I think little
Estelle Rose is the best named of the girls and
River Jude is the best named of the boys.
Marian Bianca would be a close second for the girls and
Archer Scott for the boys.
Your friends (and people you know) have chosen a decent variety of names for their children. Well, except for
Xavier Zane. Poor kid.
Also, in regards to the sibsets I love
Cosette &
Raphael and
Matilda &
Henry is nice.
http://www.behindthename.com/pnl/147561http://www.babynames.com/namelist/9852886