I don't think deep down will be exclusive forever just like I don't think titanfall will be. but my point is that sony has a shyt load more exclusive games from in house developers than third partys.
Microsoft just has halo, damn near everything else was bought for a lump sum.
Microsoft does certain things very well, like presentation and online. but exclusive games is one thing Microsoft does not do better than sony, they are heading into their third gen and they arnt even close to touching sony in exclusives