Ι think the "list" idea (made by frequency) is at least sensible. It shows a potential PS4/XBoxOne users which games will be at his disposal should he/she buy any of the two consoles. It's fair and honest to know the respective library (and the scores, for what it matters) of every console aforehand. It allows a consumer to make a more informed purchase.
This, I stole from grandpa...It's called soap.