Hello I'm new here, but am in the championship and need some player starting advice please

Here are my options I need for a flex play in a 2RB, 2WR, 1 flex league: (Right now I'm starting LeSean McCoy, Cedric Benson, Larry Fitz, and Vincent Jackson as no brainers).

1. Shonn Greene vs. NYG

2. LaGarrette Blount vs. Carolina

3. Dez Bryant vs. PHI

Please any help is much appreciated, thank you and Merry Christmas!