I do not really know what "sophisticated" is...
http://www.answers.com/sophisticated
http://en.wikipedia.org/wiki/Special:Search?search=sophisticated
http://www.google.com/search?hl=en&q=define+sophisticated
Anyway, I am a native Spanish speaker, so I do not worry too much about it.
What I do know is that Moodle means for me: it is the perfect e-learning software with the best design criteria: "simple and powerful".
Regarding Moodle statistics, I think that the total number of users is right now 4,692,106 users worldwide (though I do not know exactly how those statistics are calculated).
Comparisons and advocacy
Moodle - Most sophisticated open source application!
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