Being a great singer is only half the battle. None of them are going to hit big until they have good original songs to sing. I expect someone like Mackenzie Borg or Melanie Martinez to have a hit long before any of the winners do.
Still just being chosen for one of these shows means that they have entertained more people then anyone I ever met with the possible exception of Jody Watley who was two years ahead of me in school.
Now that the blind auditions are over, I think Team Adam is the one to watch this season. Out of all the singers that caught my ears, most of them are on his team.
I stop watching after the blind auditions