Now remember Maggie, Dionne Warwick, like her niece Whitney, were trained gospel singers, and Diana was not. Therein lies the diff, IMO. Same with artists like Mary Black and Dolores Keane, who are trained traditional singers. But then again, there is no substitute for god given talent. I never was a Eurythmics fan, but then one time I heard Annie Lennox sing a capella without amplification. Man, that lady has some pipes! Whodda thunk it?