Omg it's been so long since I've played the Wii LOL but I used to love acnl city folk and that tennis game where you use the Wii remote as a raquet. Oh god, that game was lit when playing with friends xD
That one marching game where you just swung the remote up and down to create a band. I could never maintain a good rhythm and it made me mad when an elephant decided to walk away.