I\'ve been arguing with some friends on the university, and we can\'t get to a point to which is the framework with more scalability for web applications (and still very fast).<
(five years later...)
I found this blog post which benchmarks multiple language dependent web frameworks. And now this pretty much answers the question I had in 2008.
http://www.techempower.com/blog/2013/03/28/framework-benchmarks/