From a 1st party standpoint, Switch was the winner. Xbox comes in 2nd, and ps5 in 3rd. Overall, software was great across the board.
From a hardware standpoint, I'll give it to Sony with the release if PSVR2, PS Portal, and Ps5 "Slim" model.
Xbox had 8 1st party releases, not 4 (9 if including Ghostwire Tokyo xbox version).