
wait aren't Praetorians basically xenomorph princesses? anyways favorite xenomorph type...ooh thats a hard one. I kind of like them all....well maybe with the exception of the newborn/hybrid that thing is so fugly that not even the xenomorph queen wanted it.
But If I had choose a specific xenomorph breed it would the Warrior Aliens from ALIENS (1986)

Yeah the Warriors are iconic,they are in 2nd place for favorites.

Now for the list (note only including adult stages):
Warrior/Soldier
Empress
Flying Queen
Queen
Preatorian
Raven
Drone/Lurker
Crusher
Runner
Protomorph
Deacon
Neomorph
Queen Mother
Predalien
Rogue King
King
Genetic Queen
Genetic Drone