What's the fastest, pure Javascript, Graph visualization toolkit? [closed]

JavaScript InfoVis Toolkit is awesome and i have not seen a competitor to it.

Data Driven Documents (d3.js) http://mbostock.github.com/d3/ is quite good in my experience as it scales up quite good; can easily handle 100 nodes (or more?) without any stall

We produce mxGraph, it is a entirely client-side graph visualization library. We optimise precisely for this one domain, not just general drawing, so we've quite a speed advantages that part-time projects in this field won't be able to implement.

Canviz is a pure Javascript renderer of the excellent graphviz. Graphviz is used on the server to generate the layout, but rather than generating an image it can be rendered with canviz on the client instead.

There is a demo.