[xythian]

I don't think architecture has been the driving factor for console exclusives as much as intellectual property. MS and Sony have been in an acquisition war for studios for years in order to lock down exclusive IP. This is a pretty costly enterprise because Sony and MS have to buy and maintain entire companies to produce exclusive IP.

[Jommi]

Umm, you should check that thought. The architecture of the main consoles before ps4 and Xbone were insanely different. This is coming from folks in the industry.

The reason they were locking down studios is exactly because of the hard road of making some game for both consoles. You have it backwards.