Not counting re-releases or older games you've played for the first time.
Having only a wii u and a PS3 and since i'm not much of a PC gamer outside of 80's and 90's games mostly my vote goes for
Bayonetta 2 is the winner with donkey kong country tropical freeze at number 2.
My most wanted game of 2015 isn't the new zelda, xenoblade chronicles x, or the new star fox but a game from someone I befriended this past year. He's known for creating the dead or alive franchise and reviving Ninja Gaiden, Tomonobu Itagaki.
It's called Devils Third, and it's a seamless mix of first person/third person shooting with strong melee combat and platforming.