Best Javascript Frameworks

+1 jQuery

Are these all the same?  What differences exist?  When would I use MooTools over JQuery?

"...All these frameworks are very much useful to handle the AJAX technique and dynamic effect on the client side. ..."

Can you include examples of how each one of these frameworks perform these tasks? Can you also tell me how they differ?

"...you can achieve many server side logics on the client side itself..."

How? Can you post some examples? If you can only achieve "many", what ones can you NOT achieve? Or can you achieve some with one framework, but not with another?

"...Design aspects also it helps lot. Such as tabbing, menus, slide shows, nice modal windows etc..."

Oh? Can you tell me how?

"...I suggest some of the best Javascript frameworks are,..."

On what basis? What were your criteria for evaluating these five? What about others that are not on your list -- how are they lacking? What's the difference between one and another? How can I choose which one is the best for my circumstances? Can you give some objective data that backs up your assertion that these are "some" of the best? What are others that are "the best", since your list has only "some" of them? And what about the one that moseack suggested? Why did it not make your list?

"...Best of luck!..."

If I were using this article as a guideline... I'd need all the luck I can get. Don't take this personally, please... but as an article, this is pretty skimpy.

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