If Scorsese doesn't win best director for this, the Oscars will be more of a joke than they already are. It should win best picture too, and I would not be surprised if Wahlberg won for best supporting.
I don't know. I saw Infernal Affairs a couple years before The Departed, and I still like The Departed better. There's more to a movie besides the story line. I feel The Departed had better directing, acting, cinematography, music, etc.