Diana Krall, she cannot hold a sound for more that 3 seconds...really gets on my nerves. Furthermore, all photos of her (and her Ads for Chrysler) are trying to make her look like a feminine, sexy woman. Pardon my expression, but, I think she has as much grace as a football player. I bought a cd, I got another as a gift, and my ears bleed everytime.
As for Celine Dion, her English singing is typically ''trhough the nose'' sounds. Try any of her French cd's, especially ''D'eux'', and you will discover an absolutely fantastic and stunning voice, more ''in control'' than most any contemporary artist. It just so happens that most French pronounciation and words come from the throat and chest, totally different from the english singing. Sort of like Patricia Barber, except that Dion can soar into the sky and not stay on the first floor like Barber's voice... Her current (Dion) ''techno pop'' songs are a discredit to her voicing abilities.
cheers!