I'm SERIOUSLY the odd man out here. I can't stand IM of any kind, so use none of them.
Part of the reason for this is work. We have great freedom in our internet usage, but IM usage is strictly prohibited. They never really check to see if we are looking at "Adult" sites, but having any IM activated on your work PC
will get you a Stern Warning from management.
I do have a Yahoo IM account, ID
, whatever, but never use it. When it mysteriously activates itself from time to time, I just get prevert messages!