I rather preferred the look in RLS compared to the other two, but obviously that's comparing apples with oranges. I thought the black color of the model's hair was nicely dark and rich looking in RLS. It's a shame that all three tests weren't with the same subject' I'll confess that in a comparison between the three, I find walnuts less interesting to look at.
Such preferences aside, I'm intrigued by the idea of using it at ASA 25. I thought the tonality of the enlargement of the lower back was very nice.