I don't even like Gaga and I love Ariana, Jessie J and Nicki but I think I'm going to vote for Gaga...
Maybe because I was expecting too much for their performances and they didn't give me half of what I wanted and I was expecting nothing from Gaga and she did good.
Production wise, 2014 takes the cake by a mile. I mean Gags just took origami lessons and stuck it in her background.
But Gaga's concept was much better in both performance and execution.
Plus I gave her the added bonus for changing into 3 costumes in less than seconds while Nicki gets a wardrobe malfunction.