yes, many variants would have been possible. I just thought that you could get a little more tension out of scenes like this. Of course the viewer knows immediately what's going on, but it would have been interesting how Ripley would react if they had found the dog and how she would have explained the situation to them.
I would also have found it great if the religious aspect had come into play even more,
like in an earlier script.
They could have seen the alien as the arrival of the devil and Ripley as a temptress of evil, while Clemens is the only one who believes and helps her.
When the alien "kissed" Ripley, Golic could have told the others that Ripley was working together with the devil. Some cool scenes could have been created from that. but that's all gone.
The film is what it is and I still like it.
I was just glad that it wasn't an even bigger action record. There were a few ideas from other screenwriters with several Alien Queens against several power loaders and that's just stupid shit.
I also like the film because many people expected an even bigger action film and it went in the other direction.