I'm kind of in the same boat here. I only own an Xbox so admittedly the games I'm interested in aren't Sony exclusives simply because I can't play them, but I still follow the industry closely and PS4 has the stronger lineup as we speak. Speaking from an Xbox perspective there lineup looks like this: (some confirmed some I'm just giving an educated guess on).
Sea of Thieves
State of Decay 2
Crackdown 3
Ori and the Will of the Wisps
Forza Horizon 4 or the new game that studio is working on
One of halo 6 or gears 5 (id assume halo comes first)
Neither of those last 2 are announced yet but with Microsoft saying they are changing strategy on announcing games a long ways out I'd be confident they announce halo either before or during e3 and it's there flagship for 2018. The rest of there lineup through the year is pretty solid as well and surprisingly well balanced for them. I still think the PS4 lineup is stronger though assuming everything comes out that is supposed to. Either way I think 2018 will be a great year for all 3 consoles
