It took me awhile, but I voted for Like A Prayer. I'd also like to add that Frozen, Like A Virgin, American Life, Music, and Erotica are some of my favorite Madonna singles. It was so hard to choose between all of these songs.
Like for Janet I love all of her singles so damn much. So I will pick my current fave, Music. My heart commands me to pick Hung Up or Like a Prayer etc... :cry: