GOOD: Alien - This might be my all-time favorite movie, I grew up with it and have seen it dozens of times. This movie was intended to be just another disposable monster movie, titled "Star Beast" and described as being a man in a rubber suit chases a girl down a cardboard hallway. Then the studios wondered why their director was taking the project so seriously. The sets are completely believable as a lived-in huge spacecraft, providing infinite dark corners where the then-mysterious creature might be hiding. The alien ship and final monster design are original and horrifying, leaving a vagueness that leads to the horror. And with the less-is-more approach to the alien, this adds up to one of the scariest films you'll ever see. The movie is a reassurrance to me that the right director can elevate the material if he's given control.
And as opposed to say Brave, this movie effectively acts as a great feminist statement by undermining audience expectations. When people walked into Alien, they expected the captain to save the day and end up with one of the girls. Instead, Dallas is the third to die and Ripley (remember Sigourney Weaver was not famous then) ends up the sole survivor.
BAD: Black Rain - An awesomely cool atmosphere that somewhat overstays it's welcome. A little leaner and this movie would've had many more repeat viewings from me.
UGLY - Ridley Scott doesn't really have uglies. His movies fall into two tiers: freaking awesome movies, and fairly good movie that retain a cool mood. If I had to pick an Ugly it would be Legend - I've only seen it once and never had a particular desire to return to it. It doesn't come off as being particularly special or as having any specific mythology. It feels like someone just said "Let's make a fantasy movie."
+1. this is very interesting.