When an artist puts such a definitive statement into a song, and you just can't comprehend anyone doing it better, then she "owns" that song.
ok using this definition of 'owns' i agree with some of the other commentators on the thread with "The Voice". With all respect to the other ladies, none of them will do that song like Lisa. It is perfect for her to show the strength and power that can come from her voice. Also no one hits and holds high notes like Lisa can. Its cool to listen to her voice when she does. Its almost like it shifts into a more powerful gear. I am hoping that on future songs she will do it more. I am also wondering how long she can hold a note and maintain the strength and quality of sound.
Other vocalists have done very well with 'May it Be'. Hayley did it on her dvd. Although Lisa does well with it, I do not see her version as being vastly superior to other versions. Its good, but not at some defining level like 'The Voice".
I also can see some others doing the other songs. Perhaps their version would lack something from Lisa's, I would agree to that. But they still could do a pretty good job.