I like her recent ones the best! So that's how I will rank them....I'm going to repeat myself, my taste changes, one day I'm really into Bedtime Stories and sometimes I listen to her 80's stuff a lot....so here it is:
1. Rebel Heart (bit of Messy, bit overworked, but Madonna at her best, we won't get new studio album in near future but she gave us 19 tracks (+ EP and demos) and something for every taste)
2. MDNA (truly like a drug, EDM at its best, Tour was beyond epic)
3 . Hard Candy (it might not deserve to be this high, but the fact is I listened to it A LOT)
4 . COADF (I think this one is overrated, but whole era was her best....she was everywhere, Hung Up was the best thing that happen to her career)
5 . American Life (I actually like the lead single, Love Profusion is amazing as well....I bought this one in 2005, I couldn't be happier with a purchase and it was my favorite era for very long time)
6. Music (timeless)
7. Ray Of Light (very special place in my heart)
8. Bedtime Stories (Secret alone
)
9. Erotica (visual)
10. Like A Prayer (from here she starts to improve lyrically)
11. True Blue (great singles, except Open Your Heart...ew)
12. Like A Virgin
13. Madonna
For me, it's probably:
"
I never bothered to post before, but the RHTour made me want to debate and discuss 
Madonna ha impact
like the rest of us HC stans
I'm enlightened both spiritually and when it comes to the various uses for ropes.