MSN, despite popular demand, is made of suck and fail. I have AIM and MSN, which means I use Trillian. I really hate MSN messenger, but I think it's less to do with the software and more to do with the fact that I somehow seem to have the stupidest and crappiest buddies on MSN who always send random messages of utter stupidity that make no sense. So after deleting these morons and declining anyone who wants to add me, I'm left with 4 buddies on there, 1 of which is the only one who comes online, and we hardly ever talk to each other.
AIM is ftw (but don't get me wrong, AOL is ftl).