I am looking at the evening as 3 battles:
Heaven - Bo definately outsung Carrie as Simon said. his version rocked and was verypolished. My Wife and I both thought Carrie's nerves showede through and she struggled mightily with the song.
Favorites - Carrie sung the wheels off of INdependence Day, but again her voice just sounded a little off. Bo Rocked it down with Vehicle.
Originals - Carrie definately Blew Bo away on the 2 original songs. I thought Bo did great, but never got into the song. Carrie drew me into her song, but I was very distressed that her voice broke right there at the end. Her last note was pitifully painful.
I think it was a very good night and a Very close night, but Carrie's voice was off tonight (Nerves? cold?) This was her worst night pitchwise in weeks. Bo was dead on for all 3 songs and I think that will be the difference.
One bad note for Bo - but he brought it down the scale to cover. Smart man.