Still making my way through Ni No Kuni, but haven't had enough time to really dive into it.
More currently, though is Sly Cooper: Thieves in Time. It's in every way shape and form a Sly Cooper game, so if you loved the other Sly Cooper games, you'll probably love this one. The only real addition is more characters to play as. You get to play as Carmalita Fox for the first time, as well as each Cooper ancestor for the time period you're in. Each ancestor has a specific gimick that they use, so it helps keep things kind of fresh. That being said, everything else is pretty much the same. I'm a huge fan of the Sly Cooper series, so I'm loving it so far.
Also, boy did Sony not really do any advertizing for this game.