You want to make a list about 2017. Then just compare what was released in 2017 to what was released in 2017. Those are final numbers.
This might help you (2017 only) :
- https://www.gamespot.com/gallery/ps4-console-exclusives-confirmed-for-2017/2900-1048/ : more than 50 games.
- https://www.gamespot.com/gallery/xbox-one-console-exclusives-confirmed-for-2017/2900-1049/ : less than 20 games.
It's probably not completely accurate, but it gives you a broad picture.
And there is no reason to believe that the trend will change in 2018, especially with all the announcements made by Sony.
Do you want a list of games that were revealed at E3 2017/2017 and released in 2017?
Yes please, if you mean exclusive AAA.