I don't really like my Wii, there aren't many games for it that interest me, but I don't regret buying it. I would take one of the other two consoles over the Wii without even giving it a thought. But, for such a low price I think the Wii is worth a purchase.
If you do get one I would recommend Metroid, Super Paper Mario, and Zelda. I wouldn't recommend Galaxy, because while it is pretty fun, it is very short. (I beat it in three days of very casual gaming)