Wall Street is a cunningly complex film. The screenplay is amazing, the acting is powerful (particularly the on-screen tension between Sheen and Douglas), and the direction (of renowned Oliver Stone) is perfect. Taut, intelligent movies don't get much better than this, folks.
Blade Runner never clamours for your attention. It dazzles, but not with bombast. There are space ships and shoot-outs, but they are there to establish the tone more than to drive the plot.