I'd go with DJ over Gurley. Last week was my first chance to catch a Falcons game this year, and I thought Gurley looked kind of pedestrian.
Between Renfrow and Hollywood, I think it depends on how your matchup is looking. If you're a significant underdog, you might want to deploy Brown to shoot for a boom game. If you're favored to win, Renfrow should give you a super solid floor due to Oakland having very few other options to pass to right now. If your matchup is even, I'd probably lean Renfrow.