Well, if you have such experience, and you want to learn new approaches, don't hesitate. MVC, especially MVC4 gives you more than you could ever dream of (ok, this might be exagerated :) ). Actually if you choose MVC you have only to gain. If you add jquery to your learning portfolio, you have all tools to make a good, maintainable application.
Simply take a tour here and see for yourself:
http://www.asp.net/mvc/tutorials/mvc-4[
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My experience: MVC is web development as you would do it with ruby, python or php - but with the whole .net architecture at your service and the clarity of the mvc approach.