Here's some interesting benchmarking: http://www.jamesward.org/wordpress/2007/12/12/blazebench-why-you-want-amf-and-blazeds/ http://www.jamesward.org/wordpress

Here's some interesting benchmarking: http://www.jamesward.org/wordpress/2007/12/12/blazebench-why-you-want-amf-and-blazeds/ http://www.jamesward.org/wordpress/2007/12/12/blazebench-why... compares Ajax/JSON vs. Flex/XML and Flex/BlazeDS speeds of serverside processing, packet size, parsing and rendering.