A good extension to JSF that adheres to JSF2.0?

I have been looking for a JSF extension (Richface开发者_如何学编程s, IceFaces, and more) but all seem to be according to JSF1.x and ones for JSF2.0 are still alpha or in development and most of the documentation assumes you're using JSF1.2.

Is there any production well known extension available?

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RichFaces 3.3.3 is compatible with JSF 2.0. It has however no full JSF 2.0 integration yet.

PrimeFaces 2.0 is already JSF 2.0 ready for months, it was the first to do so.

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My opinion would be biased if I say PrimeFaces I guess :) So for real life experiences please see: http://www.primefaces.org/whyprimefaces.html