At this point, A.I. has become a bit boring for me. I like all three of the finalists, and could be happy with any of them winning. Melinda deserves it the most based on sheer talent, but any of the three could have a big career, and probably will.
I think it's a tossup as to who will go. I think Blake is the weakest of the three, but he's the only guy left and may make it to the final based on that. I think Jordin will go if that's the case, but it's very close between the three of them.