Django, Scala Lift, or ASP.NET-MVC for high-speed web app dev?
My web development team is currently experienced with PHP, Drupal, OpenAtrium, and has limited Javascript and Adobe Air dev. experience.

They need to develop a relatively complex series of web apps. I am trying to decide on which route to take. So far, I have narrowed it down to Lift & Scala, Django, or ASP.NET MVC.

Can anyone give me any "heads up" on these platforms? One reputable source told me Scala is "hard to learn" and Lift "isn't a good product", and that Django is "quick & easy". Of course, Lift is more powerful and executes on the JVM, making it fast. He also said .Net dev is fast.

Other sites I have read have said nothing beats Django for dev. speed.

What do I need to know about these frameworks that will help me make this decision? I am looking for "hard learned" lessons and experience, not theory.

I don't want something that will take a year to learn but deliver great results. A reasonable learning curve with good results is optimum.
Django, Scala Lift, or ASP.NET-MVC for high-speed web app dev?
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My web development team is currently experienced with PHP, Drupal, OpenAtrium, and has limited Javascript and Adobe Air dev. experience.

They need to develop a relatively complex series of web apps. I am trying to decide on which route to take. So far, I have narrowed it down to Lift & Scala, Django, or ASP.NET MVC.

Can anyone give me any "heads up" on these platforms? One reputable source told me Scala is "hard to learn" and Lift "isn't a good product", and that Django is "quick & easy". Of course, Lift is more powerful and executes on the JVM, making it fast. He also said .Net dev is fast.

Other sites I have read have said nothing beats Django for dev. speed.

What do I need to know about these frameworks that will help me make this decision? I am looking for "hard learned" lessons and experience, not theory.

I don't want something that will take a year to learn but deliver great results. A reasonable learning curve with good results is optimum.