Katy is not the loser of the night if she made the most of the promo and will be #1. It's obvious Katy is trying to step things up. The production value of her performances and the efficient promo of PRISMATIC Tour. This is all by design.
Katy will likely get Best Pop Vocal Album next year if no major pop album comes out in the next 6 months with as much hit singles.
Adele will most likely snatch it again Poor Katy, she's never good enough to surpass the competition. She mostly get what she deserves but "Teenage Dream" should have won a Pop Vocal Performance Grammy over "Bad Romance". It's a much better + more timeless + more remembered and beloved song.