Alien
First thing i can say about them, is that they have one very unique original design. (Hands off! You can't top the Alien! 10/10) You think of all other designs they could have made, they made this masterpiece?
I like how the Alien doesn't have eyes, and its unique head shape. I fell in love with the face and head.
A mouth inside a mouth in the form of a tongue like mouth?!?! WHAT??? Oh my god, whoever came up with that idea, i love him! (I said when i was a kid.)
Damn, son! A second mouth, a long tail, cool looking design, scary, can walk on walls?! AND ITS BLACK! I love the color black!
But there's more! So that little scary spider thing is the first step towards becoming an Alien, eh? That facehugger scared me a lot back them.
What an interesting life cycle! Now if i throw a facehugger to a chicken, would that be a Xeno-chicken? Hmm... Somebody make a drawing of that!
I love of all the possible ideas you can have when the facehugger. Be it if, it grabs on to a bear, Leon, etc. Oh the possibilities one can make.
You know you're F-ed when you see one.
The HISS!
Not only the Aliens have many designs, depending on the host, but even single one of just god-like.
And of course, let's not forget about the queen. Can we just agreed she is the Galaxy's world greatest mom?
So yeah, that's my story. Hardcore Alien fan. Predator is great, too. But he didn't struck me with the awe as the Alien.