I'm 180 on this. David A, has a great voice, and when i hear him it's like god he has a great voice...but he has no 'soul'; no character in his voice for lack of a better explanation. I would never buy any of his music.
Yeah, that was my problem with Jordin Sparks last year too. Voice is fine, but...empty.
I only watched a bit this year and couldn't really find anyone to root for, so I gave up on it.