Unfortunately Hughes vanished in the 90s, only sometimes writing scripts of inferior quality. That's a pity but maybe it's just as well that he didn't direct anymore because if he had continued he wouldn't be so definitively of the 80s. It's too much to call him his generation's Preston Sturges, but there are similarites. R.I.P.
The New York Times obituary
Howard Deutch directed Pretty in Pink and Some Kind of Wonderful. After that he's made episodes of tv-shows and various sequels. I think it's safe to say that Hughes was the creative force behind those two films.