Best XSL Parser

Hello all,

What is the best (fastest/supports the most features) XSL Parser.  As I 
understand, there are a number of them, expecially for Java.  I'm currently
using JClarks Transforming Parser for java and XML::XSLT for perl.  I 
recently found xalan, which appear to be a similiar package to the one 
provided by JClark.  Does anyone which one is better (if there even is
a 'better' this early in the game).  Which other Transforming Parser 
packages are available and how do they stack up?

thanks, 
-matt


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