He got there in spite of Alien 3, not because of it. The 1992 sequel, and Fincher's feature debut, was a production disaster ...
Shai Gilgeous-Alexander should have the easiest MVP case. Except, there's a guy by the name of Victor Wembanyama.
Ridley Scott's Alien is widely considered the ultimate sci-fi horror movie, but a few genre films, like The Fly and The Thing, are even better.