Choose the best framework for AJAX development

I started  developing AJAX applications some months ago for playing. Now we're working on some serious web applications and recently I was evaluating a framework to speed up the development process.
I know that in order to make the best decision you should evaluate the scenario, but some of you could give me good advices to solve this dilemma.
I strongly used Rails on Ruby and I was very impressed, therefore I listed alternatives to this framework. I'd appreciate a comment or advice by you :

RICO in Javascript
TrimJunction in JavaScript
Junction in Javascript

SAJAX in Python
DJANGO in Python
Fanery in Python
Subway also in Pyton

Cake in PHP
Symfony in PHP5
Seagull in PHP
Trax in PHP

Rails in Ruby
Nitro in Ruby

Comments

[Mauro]

I'm not sure I really like AJAX, but I want to add this doubt ;-)

http://www.clearnova.com/ThinkCAP/servlet/LayoutMgr?LAYOUT=%2Fcn%2Finside&Transaction=/dcont.htm&NAME=%2Fcn%2Fthinkcap%2Fthinkcap_pricing&subhead=thinkcap

[Rob Gonda]

Platforms or frameworks will strictly depend on your needs. You can contact me directly if you want opinions on RoR :) . If you're looking for enterprise level programming, I am using ColdFusion MX7 Application Server, Model-Glue framework, with ajaxCFC components.

Links:
http://www.macromedia.com/software/coldfusion/
http://www.model-glue.com/
http://www.robgonda.com/blog/projects/ajaxcfc

[mikepk]

I've tried to simplify the creation of ajax style applications with my YAJAF! (yajaf.blogspot.com) javascript library/Ajax framework. I think I've come up with a way to build on the tacit knowledge of GUI programmers, creating an extremely flexible library/framework, and making it all very 'natural' to use for programmers of traditional object oriented languages. I haven't released it yet, and I'm trying to see if there's any interest in doing so. I'm looking for comments to try and gauge interest.

All comments are welcome, including "you fool, what the heck are you thinking, Open Source it already!"

[Tim Walling]

Are you looking for something that uses AJAX specifically or just a web development framework in general? Some of the php frameworks you mentioned such as Cake, don't include packaged up, ready to AJAX solutions like Ruby on Rails. If you liked Rails, Cake is however based on many of the same principals.

[daniel]

django is an awesome framework, try it out. its got some things better worked out than RoR (which is great too).

[George Moschovitis]

Have a look at the Nitro videos:

http://www.nitrohq.com/view/Videos

[Guido Bellomo]

My own ajax framework for ColdFusion

http://guidone.bloggers.it/wddxAjax/index.htm

[Dave]

Try dojo as an alternative. What kind of framework/library/toolkit are you looking for? Pure JS? Server side? These are a handful of important questions you must consider when making a choice.

[Cassio]

Mootools is another great javascript framework for ajax development.
It´s compact, modular and Object-Oriented, designed to make writing extensible and compatible code easier and faster.
Also, the FX library is incredibly solid, doesn’t require div-itis, and uses the same physics easing equations as most flash users.

[Cassio]

Forgot to mention mootool´s site.

[cassio]

http://www.mootools.net

[Stian]

For ASP.NET 2.0 you should really check out these great Ajax controls. Also comes in a free version. Easy to use, light weighted and easy to extend

[Stian]

The address for Gaia Ajax Widgets is http://ajaxwidgets.com

[Milsonei dos Santos Cardoso]

The address for ExtJS Framework, other ajax framework in javascript is http://extjs.com. The best!

[manny]

http://blog.creonfx.com/javascript/dojo-vs-jquery-vs-mootools-vs-prototype-performance-comparison

Please check the real comparison & best ajax framework.
my best choices and order: mootools, jquery, dojo and prototype.