jQuery or Prototype?

I've been struggling to decide which Javascript library to use for a project I'm working on at the moment.

I've used both Prototype and jQuery on previous projects and both of them together on Wooshare.com.

Prototype was the first one I came across so I was drawn to that initially, especially when I saw what Scriptaculous can do.

I'm also aware of MooTools but I don't want to confuse myself further so have chosen to leave that for now!

One of the projects we're working on at the moment requires dynamic HTML tables, with sortable columns.

The other evening I was browsing through the jQuery plugin library (which I have to say is extensive) and came across TableSorter.

After a quick play, it seems its easy enough to set up and does what I need for now, so jQuery and TableSorter it is.

But last night I confused myself again.

I thought I'd do a quick search for something similar with Prototype and came across TableKit.

Not only does this sort columns in the same way, it also allows column resizing and table entry editing.

Very impressive!

I also found a link to a few more Prototype add ons here.

All useful stuff.. and enough to get me thinking - do I really have to choose between these libraries? I've used them together before and so I guess I'll just use whichever is most useful for the job in hand.

Until I allow myself to discover some useful stuff with MooTools that is...