Top 20 NuGet mvc Packages

ASP.NET MVC grid with fluent API
A Flexible Html Helper Library for ASP.NET Mvc
Razor ViewEngines with Theme support for new or existing ASP.NET MVC 4 application
Extended Validation extends MVC validation to support server side and client side validations of Greater Than, Less Than, Not Equal To, etc. for various data types including DateTime, string, int, long. Ex: In your model define - [Display(Name="Start Date")] public DateTime Startdate { get; set; ...
Web Hooks for Roustabout.Inject
Small library to help unit testing ASP MVC 3.0 routes. Uses latest Moq library version.
simple route table for MVC WebSockets support for MVC
Asp.Net Mvc factories for Cortoxa Framework
Turn a basic C# MVC application in a responsive, ajax based web application
Generic admin panel for ASP.NET MVC. You should intall Ilaro.Admin.Unity or Ilaro.Admin.Ninject, depending on which DI you use.
ActionMailerNext is a painless way of using razor view to render emails. This version runs with ASP.MVC 3. ActionMailerNext is a continuation of the ActionMailer.Net project.
ActionMailerNext is a painless way of using razor view to render emails. This version runs with ASP.MVC 4. ActionMailerNext is a continuation of the ActionMailer.Net project
ActionMailer integration with the Postmark mail sending service.
It is very light weight Dependency Resolver based on patterns & practices - Unity. It can resolve both MVC Controller and WebApi Controller.
Simple and flexible fluent validation framework for .NET for ASP.NET MVC applications
Datalist core dll without content files.
A library of core helpers, extensions, constants, enums and other useful things for .NET Web projects.
Better MVC support for Sitecore CMS