bepsf There is no one-size-fits-all "Best"
It's all about what you like, what you can afford and what kind of maintenance you're willing to put into it.
At an architectural salvage place here in Baltimore, there is a gigantic marble shower, complete with about 6 showerheads. That's what this reminded me of (but on a slightly smaller scale). It's grandiose and dramatic and amazing.
knee wall detail for around toilet. I like this detail because it creates a nice alcove inside the shower for for the bench (not finishes)
I like this too. It looks good (but not the finishes, as you point out!)