Here's a lengthy article summarizing an evaluation of jsf 2 by the fellows at laliluna. It's contains some useful feedback (though I haven't had time to finish reading it). Pay particular attention to the "opinion" sections.
http://www.laliluna.de/jsf-2-evaluation-test.html
-Dan
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Dan Allen
Senior Software Engineer, Red Hat | Author of Seam in Action
Registered Linux User #231597
http://mojavelinux.com
http://mojavelinux.com/seaminaction
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