I voted for Java Chatterbox, even though I currently use the HTML-based on here more. "Why?", you ask. (Ask now, darnit.)
Because I use it on www.Everything2.com, where the chatterbox is busier. Just you all wait until PerlMonks gets as talkative as E2... the auto-updating clients will become more and more attractive.
(my problem with TP is that I broadcast to too many people)
I voted for "Console-based PM-chat" because that's what I've been
using (the plain text client that comes with my module). I had
not seen of the existence of ase's mchattk, and in fact I
had been thinking of writing a Tk interface. I will certainly
take a look at it and maybe switch.
I must say it's very gratifying to see all those people
using my module. I'm flattered :-)