It needs to be said that although Whitney did not write her songs and her material was the most "safe" and not really experimental or edgy like the others...
She does have a catalog full memorable classic hits, also it was authentic to her as a person. She was a church girl who just loved her husband and family, and she sang songs about love, heartbreak, God etc. She was relatable and ppl loved her personality and her "regal" image. Last thing, she definitely was the most "emotive" singer on the list. Not just loud and doing runs for no reason but really singing with passion that makes ppl FEEL something. I'm listening to her 200 times before I even think about Madonna singing off key about being a slut
Thank you for your time lol