The best Javascript Framework?

 Here are some list of JavaScript Framework in the internet. What is your bet to be on TOP?

 1.Moo Tools - is an free Javascript framework that evolved from the simple function called moo.fx. The developers of moo.fx have slowly expanded this simple function into a fully functional framework.Moo Tools is known for the elegance style and effect in handling dynamic function in the web.
 
download:  Moo Tools
Sample demo: http://demos.mootools.net/

2. JQuery - is a JavaScript Library Framework, that simplifies the HTML document traversing, event handling, animating, and more . It allow web developer to  get more interaction to their sites . JQuery is used to add behavior to a web page.

download: jQuery
demo:http://jqueryui.com/





 3. Prototype - according to www.ostatic.com The Prototype JavaScript Framework is a JavaScript framework created by Sam Stephenson that provides an Ajax framework and other utilities. Prototype provides various functions for developing JavaScript applications. The features range from programming shortcuts to major functions for dealing with XMLHttpRequest. Prototype also provides library functions to support classes and class-based objects, something the JavaScript language does not have.
download: Prototype
API:http://www.prototypejs.org/api



4.Dojo Toolkit - according to the dojo toolkit site, Dojo saves you time, delivers powerful performance, and scales with your development process. It’s the toolkit experienced developers turn to for building great web experiences.



download: Dojo Toolkit
demo : http://www.dojotoolkit.org/demos/


5.  script.aculo.us - according to http://script.aculo.us/  script.aculo.us provides you with easy-to-use, cross-browser user interface JavaScript libraries to make your web sites and web applications fly.


download:script.aculo.us
demo: http://ndpsoftware.com/ScriptaculousEffectsDemo.php