22 million vs 35 million userbases and lack of shooters on platform with larger userbase. Should be pretty obvious? Not to mention 360 owners who "know" that this is not the same as cod 4.

Oh an there is one GOW2 to compete against... ;)

I don't think the Wii version will do that well either.
99% of the Wii owners that are multiplatforms owners will purchase it on their HD console.
And most of the FPS fans already have a HD console.
Aside from graphics, Wii really isn't the best plaform for FPS ( I somewhat doubt Wii can get anything soon like 8 players Coop mode that Re2 has when 30 enemies spawn and rush you or anything like Horde mode in GoW2..)

 Every one has there own prediction but i really doubt that it will outsell 360 version that much or even outsell it look at Cod4 its at 6.5 million and still selling.

Except Metriod i cant think of a fps game that has sold really good on Wii.

This is not the same as cod 4, remember that. :p Well if there hasn't been big selling fps-games on wii, shouldn't there be one soon? Why not cod:waw.

@ Kulle.

I guess it could happen but i yet again doubt it will outsell 360 maybe even ps3.

Userbase only works in favor for the wii version for future sales or legs.  Otherwise it really has no bearing on the first few weeks.  So unless the Wii version is able to pull a Guitar Hero then it's doubtful it'll be the best selling version.  But it is valid to say that there is a starved FPS crowd there along with little to no competition this holiday season that could mean success but not that kind of success.

I could be wrong but I would think most of Wii users starved for FPS have either gone Multiconsoles or will this chrismas with the latest 360 price drop....

Which is why it's potential not fact.  Everything discussed as reasoning for sales of a product before it releases is the discussion of product potential as there is never a guarantee that the buyers will think that.  I have no idea if the FPS starved Wii crowd will actually buy into it.  I mean MOHH2 didn't necessarily sell well in America but COD5 is just a different scenario in my opinion along with The Conduit next year.  But as you said, it is probable that they have another console and will get the other version.  ONce again it's potential we are discussing so I will never make a finite clause for that.

@Barozi:
1. Perhaps but what it has to due with competition? Game always have lots of competition on holidays and most of them sell really good. And not only the good ones.

2. How do you know? I'm not saying it's opposite I have no data for it either.

3. Lots of sports games are released each year and somehow people buy new versions each year. And people won't know if online is better or not before they try it (read next point).

4. It's not the case if this developer is good or not. Most people don't know who developed Cod4 and who developed CoD: WaW. I agree with you that this game probably won't be as good as CoD4 but word of mouth can't really hurt first week sales. Also I just visited gamerankings and couldn't see any CoD:WaW rewievs. So reviewers won't hurt first week sales either just becouse there aren't any yet. Maybe that's how they planned it: maybe they know that game isn't so good so don't they want to destroy hype with bad, pre-release reviews.