What is the lowest realistic expectation for lifetime sales of Wii,PS3,360?

[appare13]

Difficult question, but I´ll give it a shot with my first post here anyway :)

I`m quite sure that the PS3 will be catching the 360 sooner or (more realistic) later, since MS is just waiting to long with it`s first price cut.
When it evetually comes, it will be most likely countered by Sony, so the effect won`t be that big.
The 360 is not doing better than the old XBox until now, and the PS3 will get some good games in the (not so near) future, so the "sit and wait"-game, that MS is
playing at the moment could in the end lead to another defeat with another multi- Billion Dollar loss for the Gates company.
If the Wii will be continue it`s victory march will be mostly decided on the software side: Are the developers/publishers aible to ship enough decent games, which are using the Wiimote effectively? An will the majority of the DS-Users "upgrade" to the Wii?

Worst case predictions:

360: 25 Million
PS3: 30 Million
Wii: 35 Million

"Realistic" predictions:

360: 25-40 Million
PS3: 40-60 Million
Wii: 40-70 Million

"Dominate the World" predictions:

360: 40-50 Million
PS3: 80-100 Million
Wii: 80-120 Million

Yeah, i know I´am not giving MS a good chance of winning anything here, but that`s just my personal view on the current generation.
For myself, I´am playing on the 360 most of the time, and the only other console used frequently is my DS. My Wii wasn`t touched for some month, and I didn`t know why I should get a PS3 for at least another 12 month.
But I just don`t see MS getting a momentum, just Halo 3 an GTA4 probably won`t be enough.