Best:
The Breakfast Club
Sixteen Candles
Alien
Aliens 2
Heaven Help Us. (very underrated)
To your list I would add Better Off Dead. Not one of the best of the '80s, to be sure, but a fun movie with lots of materials that would not be shown today - Long Duck Dong, the Japanese racers, Stalin the ski-bully, all great. Now that I recall it, it was a great movie lol!