MontanaHatchet on 07 March 2009
If we're talking total, it's nearly impossible to say. There are tons of untracked and undertracked games for both publishers (most notably the Singstar franchise for Sony), and you have to remember that Microsoft publishes games for the PC as well.
If we're talking by week, Sony wins most weeks, so they're the bigger publisher. Microsoft has released a bunch of games with big launches and average legs, so their total is bigger. But when it comes to weekly sales, Sony is a larger publisher.
If we're talking about this generation only, then Microsoft is bigger. Sony hasn't released Gran Turismo or anything comparable in size, whereas Microsoft has created some large new IPs to complement Halo.
