Here's some titles where the Wii version sold more units. Hostile to 3rd parties indeed...
Lego Star Wars: The Complete Saga
Wii: 1.36 Million
360: .79 Million
PS3: .54 Million
Lego Indiana Jones
Wii: .65 Million
360: .43 Million
PS3: .35 Million
Sega SuperStars Tennis
Wii: .60 Million
360: .19 Million
PS3: .10 Million
Guitar Hero: Aerosmith, Tiger Woods, The Simpsons Game, and many other multiplatform games prove that the Wii can sell software just as well as it's HD cousins. A successful game doesn't have to be defined as a million seller. That's why we give them names such as silver, gold, and platinum.