In total so far there have been 11 movies in this shared universe between the Alien and Predator Movies. Here I rank them based off my personal favs in anticipation of the upcoming Predator movie (The Predator).
11. Alien Vs. Predator: Requiem
Arguably the worst in the series, tried to capitalize on the first AVP and failed miserably.
10. Alien Covenant
Took everything that made Prometheus great and tossed it in the trash and lit it on fire.
9. Predator 2
There was a reason Predators took 20 years to come out after Predator 2, Danny Glover could not save this movie.
8. Alien vs. Predator
Not the greatest movie but was a fun ride connecting these universes.
7. Alien 3
One of the biggest drops in the franchise going from Aliens to Alien 3, thanks for killing off Michael Biehn's character. Game over man.
6. Alien Resurrection
Better than 3 in my opinion but still a downgrade in the franchise over the first two Alien movies.
5. Predators
Solid overall movie and great return to the franchise. Hope we see more exploring the Predator worlds in this years upcoming Predator movie.
4. Prometheus
I went into this because of Alien but came out with a new favorite concept, The Engineers. It's too bad Alien Covenant totally dismissed them.
3. Alien
The movie that started it all, Ripley is one of the greatest sci-fi characters of all time.
2. Predator
Arnold Schwarzenegger in a sci-fi movie, sign me up. Movie that started it all for the Predator series.
1. Aliens
Alien was great but Aliens took Ripley and made her an epic badass which will forever be remembered making Aliens the best movie in this shared universe between these alien badies.
Thanks for reading, looking forward to seeing some differences of opinion in the comments.