Both previous albums sound in my view, more like a kind of compilations.
If, however, the classic Madonna qualities just are accustomed, then you are again better off with Rebel Heart yet. As with MDNA worked here several co producers, but Rebel Heart has become a more rounded thing. Madonna sings with great feeling, often unfiltered and leaves it in a good crack with more party songs and self-reflection as, among other things in the wonderful "Vedi Vidi Vici", where after a great break Rapper NAS accepts a great rap part.
My favorite pieces are more likely to back the ballad-like songs Heartbreak City, Ghost Town, Joan of Arc, Messiah - some with string arrangements.
Madonna lays with Rebel Heart certainly a very successful piece of pop music before - and an album that makes round pleasure: You can not say about many albums these days one. She has her title Queen of Pop for 30 years (Charts etc, leaks, no major classical music broadcasts more) in a now very short-lived pop business and major changes in conditions at least not in vain held.