I'd have been fine with either Dara or Alexander winning. They both did an outstanding job all the way through. All the kids showed great character and sportsmanship, cheering each other on, etc. What a refreshing change from the adult version!
I really loved this show and will be looking forward to Season 2. I enjoyed seeing GR interact with kids. As he mentioned to Alexander, he's tough on the outside but a softie in the middle (or something like that.)