Blade Runner is on my list of best films, period. The combination of the cinematography and the score by Vangelis is hypnotic.
You probably already knew this, but Blade Runner was an adaptation of Phillip Dick's Do Androids Dream of Electric Sheep? Total Recall was adapted from his short story We Can Remember It For You Wholesale, and Minority Report was from, uh, Minority Report.
IMHO, Dick was one of the best Sci-Fi writers. His strength was in addressing the issues that happen when technology becomes so realistic it displaces reality in our every day lives.