I think PS4/Nextbox will both suffer the same problem that the WiiU has, which is 3rd party development costs being too high to just make for the current gen consoles initial install base.
PS3 or 360 will probably outsell Nextbox4U combined.
Of the current gen consoles, probably gonna be a 3 way tie, maybe Wii U cause the install base will be higher by the time the games come out.







