very strange list of packets is observed....
.. for example, I am really surprised that LibXSLT (XSLT engine based on LibXML), XML editor MLView and few other XML packages were not included in this review. Also a lot of interesting features like XInclude, SGML support, etc. were also left outside.
As a comment on the review quality I have to note that the statement "C++ based XSLT engines can run *slightly* faster than their Java-based cousins" is not near close to reality. I would suggest the author to compare, for example, LibXML + LibXSLT and Xalan results.
Probably if the author had contacted the authors of the reviewed packages then the review would have been much better.