Fantasy Football.. Need help with start/sit em?

I have one wide reciever slot open and have 2 recievers who could fill it. Either Mike Sims-Walker from the Jaguairs.. OR .. Robert Meachem from Neworleans.. it is the championship game and I need the better reciever. New Orleans is playing Tampa Bay and The Jaguiras are playing THe Houston Texans. Any good sugestions? Thanks for the help