I use MSN and Yahoo but MSN mainly. As for why, I just happen to have it at my office and at home so it leaves me the option of talking all day long which for those who know me is something that just tickles me pink.
I just use Yahoo. AOL and ICQ are evil. Yahoo is one of the lesser evils, I don't know about MSN. But I know the MSN search sucks so I'm not chancing anything on their messenger.
I have all of them,but use yahoo the most. But here lately I havent been on any of them. Sigh...I hate spring cleaning my house,and its not even spring yet.
I'm afraid that the people I deal with use AIM as their primary messenger, but I always have MSN on and prefer Yahoo since I think it has the best features.
ICQ is on ALL the time
AOL I used to NEVER turn this one on, but just added a new person, and now it is on quite a bit.
MSN is on occasionally,
as is my Yahoo.
I have Yahoo, ICQ and MSN. My yahoo is on all the time, and just occasionally use MSN and ICQ. Most of my friends are on yahoo, so that's the main reason I use it.