Thanks for sharing this.
I have to agree pacing is better in the final film. What is good about this script version is that it sheds enough light on some topics, at least it let us in the head of the writers and Ridley in regards of what is happening in planet4.
This was the most interesting part to me, David commenting on the dead facehugger:
QuoteDavid carefully stretches open the dead fingers, spreading
the beast for Oram to observe the horrible maw.
DAVID
This one's a true survivor. Not
unlike myself I suppose ... It can
evolve very quickly under certain
circumstances. Sadly, this one
became aggressive so I had to do
away with it. Such a shame.
The "survivor" part seems to indicate that the eggs were stored somewhere by the engineers, and that the specimen had survived the bombing and whatever happened to planet 4 during the 4 days disaster (mentioned by David earlier in the script), until David found it, had to kill it, then studied how the engineers created it and took it from there.
I don't know how to feel now. Sure, some of these comments by David create more mystery, cause further info is shared but no conclusive answers are given. However, the answers seem to point to rather unsatisfying concepts, like all xxx-morph creatures being just parasites or engineered biological weapons.
No nightmarish conceptions, unknown origins, sex machines deviations, no giger.