AFAIK, Google hasn't said that EV certs are treated more favorably than non-EV. They were very public when they announced that HTTPS would be used as a ranking

AFAIK, Google hasn't said that EV certs are treated more favorably than non-EV. They were very public when they announced that HTTPS would be used as a ranking signal, so I'm not sure why they would keep it a secret if they gave special treatment to EV certs.