Madworld would not do better on any other (singular) console. It doesn't have mass appeal, in the same way Okami didn't for the PS2.
It would have likely had a better opening week (perhaps double or triple what Madworld will get, which when Europe sales show for this week will be around 80-100k), but lifetime sales will still have been very similar (I expect Madworld to do arounf 700-800k, with the slim chance it will scrape 1 million)
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No More Heroes similarly wouldn't have done much differently (other than a bigger opening week but poorer legs) after all, similarly nichely styled games like Killer 7 did terribly on the PS2 and GameCube.
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LBP I am not sure on... first of all it would have not done as well because Nintendo would not have jumped in to fund the game like Sony did, but things like that aside I still don't think it would have done any better on the Wii, perhaps a little more due to higher userbase, but not significantly.
