[Athtar]

Yes, C# is definitely the way to go. VB is still supported but C# is now the primary language if you are doing .NET development.

What functionality do the current ASP pages provide? Is this for a website or are these custom applications? Either way, I would recommend switching to MVC but depending on the use, your approach will vary.

[rogeralan]

Lots of forms. like registration and updating user info etc.

Lots of pages that list data using tables. Different logic for changing what gets displayed on the pages. For example, showing something based on a user being logged in or not.