That's counting games in quantity, not quality. The games with large budgets and heavy advertisement almost invariably make their way to the PS360, while the Wii is saddled with a spinoff game (ie Soul Calibur Legends) or a version that's gimped for no good reason (ie CoD:WaW) at best, and is outright ignored at worst (ie SFIV). To third parties, the Wii will never be more than a second class citizen, even if it were to sell more systems than the PS2 in the end. To that end, I expect many third parties to pay for that decision in some fashion, as ignoring the market leader in a recession just screams financial suicide.
Super World Cup Fighter II: Championship 2010 Edition