Obviously GTA V... Its Multiplatform with bigger install base on both platforms
Then COD:Ghosts cause of the same reason
Followed by Pokemon
ps3+360 = over 100 million install base...
3ds = around 33 million install base...
PC Specs: CPU: 7800X3D || GPU: Strix 4090 || RAM: 32GB DDR5 6000 || Main SSD: WD 2TB SN850