Ruth - classic, no-nonsense name (for nonsense the useful nn Ruthie can be used )
Zoe - I always liked this as a child. Was jealous of girls with the name Zoe. Thought it was a cool name. One horrible Zoe ruined that for me though.
Clara - I think I like it. Certainly don't dislike it. It's too much like Cara to dislike and I love Cara.
Iris - don't like. The eye, Murdoch, a flower.