It's not surprising that rythym game Guitar Hero 3 outsold competing rythym game Rock Band. After all, GH was the guitar game for years, with brand recognition and loyalty that's unbelievable, where Rock Band was brand new and crazy expensive at $170 a pop. Plus, Guitar Hero 3 came out first. Plus the PS2 version of Rock Band isn't included.
So these comparisons don't mean much, but the numbers look like this, according to industry analysts NPD Group:
Guitar Hero III: Legends of Rock
* PlayStation 2 -- 1,469,800
* Xbox 360 -- 750,400
* Wii -- 712,300
* PlayStation 3 -- 247,600
Rock Band
* Xbox 360 -- 296,000
* PlayStation 3 -- 68,500
link
So these comparisons don't mean much, but the numbers look like this, according to industry analysts NPD Group:
Guitar Hero III: Legends of Rock
* PlayStation 2 -- 1,469,800
* Xbox 360 -- 750,400
* Wii -- 712,300
* PlayStation 3 -- 247,600
Rock Band
* Xbox 360 -- 296,000
* PlayStation 3 -- 68,500
link