I nearly tore my hair out trying work out a C#/MVC/AJAX/Razor while trying to develop my game. While the backend, C# is a good solid language for serverside, MS still doesn't have an easy frontend language. Checkout Telerik for some HTML5/JS/AJAX frontends, they're pretty good for a C# backend with example code. It's not cheap, but it's a good drop-in replacement architecture for moving away from lamp stack components.