New Fan Faves sweepstakes for Wii U and 3DS, I'm voting for Mario games.
Miiverse Fan Faves Sweepstakes – What do you think were the best Nintendo games of 2015? Make your voice heard and earn a chance to win some cool prizes by entering the Fan Faves Sweepstakes. Head to the Miiverse Fan Faves 2015 community from Dec. 1 to Dec. 3 to vote for Nintendo 3DS games and from Dec. 4 to Dec. 6 for Wii U games. Good luck!(Source)
~Nintendo Press Room