Okay, citing that because Camerons works are discussed in film schools (ergo making him a good writer) and his accolades for his films does not make him a good writer. I went to film school myself, and yes, the script for ALIENS was discussed as was the alien trilogy itself, but not because The script was so-called 'good' it was because it was rare that a sequel could hold its weight up against the first installment of the saga.
James Cameron is good at tricks, and utilizing the visuals to tell an impressive story. ALIENS was almost a replica of the first film in terms of pacing and some major plot points, even up to the female voiced computer count down in the end. What Cameran succeed at doing was upping the tension. Cameron has been awarded because of his technical feats, not his literary ones. Let's get our facts straight.