I think the main difference between Sony and MS is that Sony passed up or pushed back developing sequels for successful franchises they own while MS didn't really have many successful franchises that they passed up on so they had no choice but to support new IPs. That means Sony took a bigger risk, MS had no risk to take because their best IPs were Halo, Forza, PGR and Fable. I can't think what other successful IP's they owned. But they published all of those pretty early in the generation and will continue to publish them. I don't think MS passed up developing a single successful franchise.
Sony on the other hand has a giant pool of popular franchises and even then they continue to support more new IP's than MS has this generation.







