You are all forgetting that every Xbob 'durango' game will be optimized for these 16 cores, unlike PC where no game is really optimized because all PCs are different.
So If all Durango (god what a stupid name) games are optimized for 16 cores, it should be at least, what, 3-5 times better than 360 in CPU performance alone. Gaming wise.
Less is not more. More is more.