[UPHPU] Javascript Toolkit

[Daniel C.]

I've been looking at javascript toolkits (dojo, script.aculo.us,
prototype) and they all look like they do nifty stuff, some of which
would be useful and some of which are superfluous.  As far as I can
tell, they all do what I want (simple ajax stuff) and have nifty
things I could make real use of (not just eye candy) in the future.

One thing I could *definitely* make use of immediatly is Rico's
datagrid thingie:
http://openrico.org/rico/livegrid.page

So, which one is "best", or sucks least?  Feel free to suggest any
that I didn't list as well.

Thanks,
Dan