Well earlier with gow3 it was the cog logo then it changed to marcus fenix now its the cog logo again same with wwe 11. You play it on the xbox its a wwe logo then here on the forums its a john cena logo.
Odd, but I'll keep an eye out for that when looking around. As far as I know the official Gears of War 3 logo is Marcus Fenix, as that's the one which is identified on consoles. Maybe it's being changed behind the scenes or something, because I know Call
of Duty: World at War was changed from "Call of Duty: WaW" to "CoD: World at War" early in its lifespan.