Release dates: Japan - US
Wii-December 2, 2006-November 19, 2006
Xbox 360 -December 10, 2005 - November 22, 2005
Game Cube -September 14, 2001 - November 18, 2001
Halo 3 - September 25, 2007 - September 27, 2007
Super Smash Bros. Melee - November 21, 2001 - December 3, 2001
Console sold: until December 30, 2007
Japan - US - Total
Wii - 4,662,743 - 8,483,433 - 19,452,680
Xbox 360 - 543,141 10,341,100 - 16,020,441
Gamecube - 4,024,279 - 12,738,489 - 21,512,389
Game sold: - Japan - US - Total
Halo 3 - 94,616 - 1,707,454 - 4,622,646
Melee - 1,375,165 - 4,050,000 - 6,505,165
Halo 2 - 53,899 - 5,873,810 - 8,452,022
I checked those from vgchartz.com so I don't know if we could trust those numbers. As for Brawl... I think it will be balanced just like Melee. Halo 2/3 didn't sell that well in Japan compared to other regions. Just like many has said, Halo 3 was hyped so it sold pretty fast at the beginning. Brawl may outsell it at the end, hopefully.