Which's the best performance between Asp.net MVC controller VS. Wcf for Silverlight Application?

Question

I found that Asp.net Mvc controller can serve both Asp.net Mvc View and Silverlight application via DynamicActionResult(It can be Simple Action Result or Json Action Result depend on request type). So, I have 3 options for creating middle-tier for Silverlight application.

1. Pure WCF Service Every request to WCF must be declare in interface. So, it's strongly-typed connection.
2. Asp.net MVC Controller It can serve both Asp.net MVC View and Silverlight application at the same time.
3. Using both of them I found that it's possible to doing this by using the answer in the following link. I think, It doesn't good idea for creating both of them.

WCF Service with Asp.net MVC application

Which's the best performance between WCF Service and Asp.net MVC Controller?

Thanks,

Answer 1

Do you have the kind of service that would benefit from caching? If so, my testing says that MVC with Output Caching turned on is very much faster than WCF.