Vanilla was mostly from 360. When 5U dropped is when players started shifting to PS3 more, and then stuck to Sony platform when LR was released due to the shaft XB1 had.
If you had vanilla for 360 good. The one for PS3 was a glitch storm and we had to wait days to get a patch after 360. PS3 was getting firmware updates and DOA updates that it became better, pre-patch DOA vanilla was pretty bad and lobbies were pretty small.