Scott is good for visuals and creating atmosphere. Script issues aside, Prometheus had both atmosphere and visuals in spades. The Martian proves he still can deliver with a good script.
And Aliens biggest shit on IP in movies? Its not even in the top five.
1) Star Wars- Already mentioned.
2) Batman (Burton era)- Batman and Robin killed the entire comic book movie industry for over a decade.
3) Godfather- Seriously, my hats off to anyone who can even sit through the third movie, especially the parts with the director's daughter stinking up the screen.
4) Spiderman- We went from Doc Ock awesomeness to emo Parker and the Spiderman IP has never recovered. Maybe Marvel turns this one around.
5) Die Hard- 1 & 3 are incredible genre defining movies, but everything after 3 has been phoned in liquid shit.
Movie may or may not suck, but it will be worth seeing for the visuals, at the bare minimum.