Pick 1 QB,WR & RB for Week 3 ?

I'm in a Pick 3 league. Please pick one of each from my following choices: QB-Cutler (vs NO), Brees (vs DEN), Rivers (vs NYJ), Roeth...(vs PHL); WR-Marshall (vs NO), Calvin Johnson (vs SF), Boldin (vs WAS), Smith (vs MIN), Jennings (vs Dal); RB-Gore (vs DET), Turner (vs KC), Jacobs (vs DEN), C Johnson (vs HOU). Please give some reasoning behind your answers. Thank you for your help!