Today I found this
Google Chrome JavaScript Speed Test|Emad Ibrahim interesting article.
I noted the following term in the comments (page search Opera):
"try opera, for some reason with prototype it owns the competition =P but that's the only one that's faster, otherwise, google chrome ftw!"
(Related link:
P-Competition)
That is based on JavaScript library tests.
Note: Point 4 in my short article about (first link in my second post).
"Advice for online shoppers"