Overall, the Wii would outsell its competitors worldwide. However, Wii sales considerably fell in 2012.
To this day, the PS3 and xbox 360 have been catching up. Nevertheless, the Wii has still outsold its rivals by about 30 million units.

    Wii – 97.18 million as of 30 September 2012[8]
    PlayStation 3 – 70.2 million as of 30 September 2012[53][54]
    Xbox 360 – 70.0 million as of 30 September 2012[55

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PS3がいつの間にかXBOX360のシェアを追い抜いてた(;´Д`)意外だな

http://en.wikipedia.org/wiki/Console_wars#Seventh_generation