The framing of this question is ridiculous and the options aren't much better.
I don't like Beyonce's voice tbh. There's something she does with her melisma that irritates my ear. She goes flat during her runs far too often.
Picked Christina, but now that I think about it... note for note it's probably really Carrie Underwood ('83 is close enough). She's got the widest range, clarity, stability and power, but doesn't get love for her vocals because of her genre.