JavaScript Framework Selector Benchmark Tool

Many front-end developers nowadays are all using javascript framework such as jQuery, Dojo, MooTools, Prototype, etc. Most of us will be wondering which framework is more efficient than the other. Mootools brings us a great tool called Slickspeed to benchmark different framework selector performances against each other. You can even download the source code and test it on your own local drive or server. However, i notice that the result was outdated and a new test should be performed. Ever since jQuery new 'Sizzle' selector engine was released on its version 1.3, many people has been asking how much of a performance it has gain. Furthermore, Resig has been inviting other JavaScript frameworks to implementing Sizzle in its codebase and i was left wondering who did implement Sizzle in its codebase. Out of curiosity, i decided to find out.