MetalGearSolid_4ever on 13 April 2009
Sony = PS1 + PS2 + PS3 sales = Approx 300 million
Microsoft = XB + XB360 sales = Approx 50 million
Hence, Sony > Microsoft by 6:1.
Its easy to understand. Its no secret that 360 has sold more than PS3....but the PS3 is selling more than 360 in an equal timeframe.