I would stay away from SMG but the rest were very enjoyable. I would say get SSBB but it seems you might not like party games and though it is my fav Wii game it may be considered a party game.
Mil. Sellers:
Wii: 25 titles 101.4 mil total avg 4 mil per title
PS3: 14 titles 28.6 mil total avg ~2 mil per title
360: 41 titles 89.8 mil total avg >2 mil per title