I would start Beanie then Manningham, Maclin, Snelling, in that order.
Beanie should get more touches than Hightower and has shown he can ba a goaline back, as well. You couldn't ask for a much better match-up than the Rams, who give up an average of 142 yrd/gm on the ground for a total of 13 rushing TDs this season. Not to mention, the Cardnials passing game does a great job of setting up the run and don't forget: they are (surprisingly) undefeated on the road.
Manningham could be a good option as well. Eli looked better in the Chargers game completing 25 of 33 for two TDs, with no INTs. The Giants are coming off of a bye week, hungry for a win and playing at home against a less-than-impressive Falcon pass-defense.(especially in road games) The upside for Mannigham this week could be big, but Wells is the safer
Maclin's numbers are very close to Manningham's, this season. Each of them have the potential for a big game, but typically put up mediocre numbers. The Eagles have had trouble running the ball all season, with or without Westbrook, and had to lean heavily on the passing game in week 10, with 55 attempts. The Bears passing defense is 8th in yards allowed per game, but gave up five passing TDs to both the Cardinals and the Bengals. Each time, the TDs were split between four recievers, sugggesting the Bears may have trouble covering multiple talented recievers. The inconsistant play, however, would keep me from starting Maclin.
Snelling is my least favorite of the four. He will get the carries in the absence of Turner, but the Falcons' are developing the habit of getting behind in games, causing them to be pass-heavy in an attempt to catch up. And again, the Giants are a tough matchup this week, for the reasons stated above.
Just one man's opinion, hope it helps. Could use some help myself...viewtopic.php?t=461262