Hard part for Couture is going to be getting inside on sylvia to take him down. If he can't get past sylvia's reach he's gonna have his work cut out for him. Syliva has to work on his takedown defense, I don't think he's faced a wrestler of Couture's caliber. If Sylvia is taken down Couture might have a hard time keeping him down because Sylvia is just HUGE. Either way Couture has his work cut out for him. But who knows...Couture could surprise everyone and strike and possibly out strike Sylvia just like he did Liddel.
As for the other fights...Hughes shouldn't have a problem with Lytle, and I think Franklin will handle Macdonald fairly well.