Out of these 4, Which film is the best?

I voted Alien, but if I could have voted another one it would have been Robocop

Alien. Honestly, besides Terminator nothing is better in quality on this list IMO. In fact, I would go out to say that, while they are cult classics and VERY entertaining, they are at best average films.

Not only was Alien entertaining, it actually had great writing, one of the best badass female leads, actual scare scenes, and an intense plot.

I say Robocop.

Beata

Alien

I'm going to say Predator just to be different.

Alien stomps first I thought it was predators from aliens vs predators lol

Alien

Alien all the way.

Terminator.

Predator.

Terminator.

I say Alien, but Terminator is a very close second.

Terminator.

Alien curbstomps.

That was tough. I will go with Alien.

I wanted to say Alien, but Terminator to me beats it. Barely.

terminator.

Alien

I voted robocop. Closely followed by alien.

Predator is still my favorite action movie. It was a great movie even before the Predator even starts playing a huge role in the movie. The buildup of the Predator by showing the world through it's heat vision was fantastic and eerie. Wonderful movie. I only watched Alien once a long time ago so I don't remember it completely. I'll have to remedy that.

Another interesting poll would be which of these franchises has been best post 1991 after Judgement Day was released.

Terminator.

My childhood movies, I ain't choosing

That would go to predator, since it's didn't have have bad sequels

I prefer Alien.

1. Robocop

2. Terminator

3. Predator

4. Alien

1. Predator.
2. Terminator.
3. Alien.
4. Robocop.

Alien out of all of these, if it was Terminator 2 however...

Terminator.

Terminator > Alien > Predator > Robocop

Robocop

Alien (1979) without a doubt.

This basically comes down to ALIEN vs Terminator. Voted for ALIEN as I feel it was the more ground breaking of the two. Tough call tho

Predator.

I liked Predator a lot more than the original Terminator, but Judgement Day (T-2) is a completely different beast.

I'll say Terminator.

Terminator.