There are some strikers when they dont score they dont contribute anything. Ollie is not one of those.
As close to a complete striker as you can get.
Haaland is a better goal scorer. Watkins is a superior footballer. Im saying this as a Norwegian
I've watched his other teams in Europe before and Emery's teams just have this ability to stay in the game despite not playing well and somehow find a way to get a result.