First Week
360: 518k
PS3: 252k
Wii: 392k
PS2: 321k

End of Year:
360: 1,238k
PS3: 652k
Wii: 1,620k
PS2: 1,287k

Lifetime:
360: 3-4M
PS3: 2-3M
Wii: 4-5M
PS2: 2.5-3.5M

Which version? GH:WT has 3 versions. Full kit, guitar kit and game only.

Are they being tracked separately, FishyJoe?

I'm pretty sure they all count as the same game.

When i went to my gamestop all the wii band kits and guitar kits were gone and alot of 360 and ps3 kits just sitting there. I expect the wii gh to sell around 450k- 500k

My predictions

First Week

X360: 650k
Wii: 400k
PS2: 350k
PS3:300k

LIfetime:
Wii: 4m
X360: 3m
PS3: 2m
PS2: 1.8m

One thing Pachter said in the most recent bonus round, Guitar Hero has 23 million guitars sold. That's a huge audience.

Well considering we track the game being sold not its accessories which do you think.  All of them haha.

Wii: 450k
360: 500k
PS3: 180k
PS2: 240k

Are these predictions worldwide or for the Americas only? I know the games don't usually sell much in PAL first week, but it's gaining steam there. I'll just go with America.

Wii: 750k

Xbox 360: 600k

PS3: 400k

PS2: 320k

That's assuming that the franchise actually grows from last year. The higher price tag for the extra instruments may hinder sales a lot. I'm probably being fairly optimistic for the sales, but I've already typed up this entire post, so I may as well enter it.