Alien Covenant all day everyday. I thought it was better in every way comparing it to Prometheus. The pacing, creature effects, special effects, acting, soundtrack. I loved the darker more Alienesque route Ridley took and in my opinion it's what made it far more entertaining as a film compared to Prometheus which I felt was boring and lacked substantial scares and atmosphere. Michael Fassbender's performance as the estranged David was downright CREEPY and bizarre and I loved that!!
Everything about Michael's acting performance in Alien Covenant insurmountablely outclassed himself in Prometheus. Ridley took in the right direction with Covenant.