Mootools, Scriptaculous, Prototype, YUI or JQuery?

[eluser]Thoer[/eluser]
I started using javascript frameworks about a year ago, and my choice was Mootools for the very same reasons I found CI to be the best in php frameworks, or at least they were for my needs. It was blasingly fast, well structured and had a really good guide through, namely the Mootorial.

A couple of weeks ago I started using jquery, mostly because CodeExtinguisher uses it, but I think I've gotten to know it in and out and I still think Mootools is the faster (since $ doesn't have that much power, MT uses other functions when you need that instead), yet not much complicated javascript tool. Documention for both tools are awesome, but what really beats MT down to the floor is the Plugin arsenal of jQuery. Man, that just rules, although there isn't much you wouldn't find for MT, its great to browse for all the plugins, you don't have to search the forums. I believe CodeIgniter needs something like that because the wiki seems kind of useless.

BTW, http://www.cibase.info/ seemed to be a good start, but there's no update since the 26th of March...