Covenant vs Romulus
I felt let down by the teen cast and the static xeno action in the movie plus the fast paced facehugger action who felt like annoying bats. Also I didn't think the gravity scene was that great because the cgi blood floating looked bad plus I never digged the focus on the acid blood too much.
I feel the Xenos were too slow and too static and weren't really scary because the pulse rifle shredded them into shreds in seconds.
I feel like while I didn't like covenant that much because of the spiritual engineer world stuff the Xeno cgi and overall production value seemed better. Also the more mature crew.