ICQ 0wnz AIM, just not in America. I do agree that AIM is better for chats but you can always use ICQ chat, and when I go "online" in AIM I can't get anything productive done cause it requires full attention to have talks.
I have 320 online/real life friends, family, biz people, on ICQ, about 35 friends on AIM from when I lived in Jersey, and 7 cousins on MSN.