what did you end up choosing? I am working on these same selections.

I would suggest Grohe and Hansgrohe showerheads. We don't like fixed ones, so we'd have 2 sliding bars with hand-held heads: 2 people can take shower at the same time, plus both shower heads are adjustable. We have Hansgrohe Raindance, very nice head. For kids bathroom I'm getting Grohe Movario 36" bar and, most likely, Grohe Power and Soul Cosmopolitan/Contemporary shower head. Movario bar has wall brackets that also function as shower holders, so you can place shower head on the bottom bracket to function like a body spray without even moving a slide.

ev2012: "I have been looking at the Axor lines, but don't know... Any advice? Bath will be transitional - modern."

We had a Hansgrohe Axor Steel as the only showerhead in our shower. It was a good showerhead, but we are much happier with the Moen Velocity 6320 (also -- or still -- the only showerhead in the shower) that we replaced it with. Inasmuch as you already will have two other showerheads in your shower, your bases are covered, and you should be happy with the Hansgrohe.