A JavaScript library of choice

I am digging around the ‘net a lot these days, trying to learn about the differences between the various JavaScript libraries out there.

I’ve only ever used MooTools for custom stuff (ie. more than just dropping in SlimBox or SmoothGallery on a page), and find it incredibly easy and very satisfying to work with. It allows me to quickly add a responsive UI to my code without having to write everything from the bottom up.

In my research, I came across a very interesting post from Aaron Newton over at Clientcide: jQuery, MooTools, the Ajax Experience, Programming to the Pattern, and What Really Makes One Framework Different From Another about MooTools vs. jQuery and (of particular interest to me) how code reuse also has its merits when dealing with JS libraries and UI code. Generally, his blog is filled to the brim with interesting views on user interface design and coding, and is highly recommendable.