Cole's single is in the iTunes Top 20 right now. Blake may have lucked into another big seller if they can find the right songs to sing, because he's the one coach who sure knows what songs sell well.
That's absolutely why Blake keeps winning, song choice.
Ceelo keeps picking weird 80s songs he likes but are not performable on a current national stage and don't fit the artist at all. Christina picks these weird boyband-ish songs that don't fit her performers. Adam's a little better but he hasn't landed the best people since the first season.
It's incredible that the Swon Brothers came in second last year, and they did so because every song they chose was perfect for them.