I went again through all the Wii million sellers.
The best legs for any core games is 20x so far but it's actually quite common ( like 5-6 titles have done that).
There are a few non core games with a better ratio though.
ben 10 has an amazing 100x ratio
Cooking Mama has a 55x ratio.
Rayman Ravid Rabis has a 24x ratio.
For the record the game with the best legs this gen among the top sellers is Nintendogs with a 40x ratio.
And that kick ass legs Mario Kart Wii has only a 7x ratio and it's hard to imagine that ratio will ever get above 10x...
I don't think any games with Week1 sales over 100k on the Wii has a ratio over 20x.
Still historical data makes it hard to believe the game would do anything better than a 20x ratio.
Which would cap sales at 2.4 millions...








