Home Console: Super Mario 3D World, so far, is my favorite. Lots of secrets, excellent gameplay, gorgeous art style and fun multiplayer.
Honorable mentions: Assassin´s Creed IV, Forza Motorsport and Wonderful 101, this one for its cool ideas and intense gameplay, a breath of fresh air in this industry bloated with bloody and repetitive FPS and TPS.
Handheld: Animal Crossing New Leaf. This game simply never ends !
honorable mentions: Shin Megami Tensei IV, Fire Emblem Awakening, Kid Icarus Uprising, Resident Evil Revelations