I suggest Mario Kart Wii and WiiMusic - I know you don't want the last one, but...
Those 2 were the only ones my sister showed interest and played. She played mostly Mario Kart. My parents played SMG.
Boom Blox is good, but it's a very short experience.
WarioWare:SM recommended, there only a few minigames that are hard to play, it's very fun.
Samba de Amigo has awful controls, I do NOT recommend it.
I also recommend Animal Crossing.
I'm trying to remember more games, I'll be editing this post with more games.
Formação do indíviduo, transformação da sociedade.