I've been wondering about this for some time, and I'd thought I'd see if anyone else had heard anything about this queen theory from the movie: Aliens
The Theory:
So, as we know from the first movie the 'space jockey' ship crash landed on LV-426. From what Alien shows us there is only one 'pilot' maning the ship and he as it seems, was killed by way of a chestburster. What this theory stats is that, because the alien species was 'made' by the jockey race there was no need for a queen. The queen that appears in Aliens, is a product of when alien and jockey DNA meet. So what this means is that this facehugger was able to get out of the stasis field, facehug this jockey, which causes the ship to crash. After the crash this new alien form comes out of the jockey's chest and unexpectily falls back into the stasis fields, trapping it until the events of Aliens occurs. When Newt's family stumbles upon the ship and Newt's father is facehugged. This queen chestburster is able to escape the fields and make her way to the atmosphere processor. She grows and produces eggs, thus leading to the infestation of the entire colony. As for the hugger that got Newt's father, that 'normal' alien is killed off by the now altered alien species which were all spawns of this altered queen. That DNA gives them that different look, and abilities.
As for the later movies, because of the destruction of LV-426, that pure race of aliens were destoried. The rest of the aliens you see are either spawns or cloans from that first queen. As for the AVP queen, this event of these aliens facehugging space jockeys may have occured many times on different planets. And the predators were just lucky enough to snag one of those queens.