You want to compare BC performance of MS and Sony?
How about enhancements such as resolution? How about adding HDR to old games that didn't have it?
Its a none contest. And if you read my post, you would have seen where I also brought up how the changes to the design of the XOX including RAM didnt matter.
And for all that lovely BC that ms spends its money on all this gen 110million ps4's have been sold by the competition ... Shows how important BC really is to the regular gamer it's a nice add on and thats it to me imho.