Not really, but I hate AOL!
I'm using Trillian. I use it for ICQ, AIM and Yahoo. (I think MSNIM is better, so I don't use it for MSN).
Once I couldn't connect to AOL in both Trillian and AIM's program because I was 'trying too soon', and I found out it's because AOL doesn't like Trillian (I'm sure it's banners and stuff even though AOL says it's insecure/whatever). I got the newest Trillian and it worked again - and guess what - it stopped working yesterday. I got Trillian's newest version and it works again, 'till next time.
Please get ICQ/MSN/Yahoo as well, I use AIM only to contact people which don't have/use it.