Been playing through Mario + Rabbids. On 2-5 right now. What a great game so far, if you never told me it was an Ubi game I'd believe you. Hasn't really been too tough so far, but it's been a decent challenge, definiely made me think a bit. Some of their takes on the genre + unique Mario type things they've implemented work wonderful.
Right now it's just Mario, Rabbid Luigi and Rabbid Peach. Haven't subbed regular Luigi in yet.