I was rooting for Kris or Danny all the way.

Adam is very talented, but was way too polished for an amatuer and I thought the premise of the show was to find a diamond in the rough, with no previous professional experience.
Adam will go on to greater things for sure and it was so nice to see the underdog win. I just wanted to jump through the TV and give Kris a big ole hug!
The judges certainly did all they could to ensure Adam's win, which may have hurt him in the end.