Well, while trillian can connect to several IM networks, there are some it cant connect to, and everyone should use what they like, not what one person thinks is best
I use to use gaim since most of my frind were spread out over yahoo msn but they all switched to aim so now thats what i use to. I had dead aim for a bit but decided to just use normal aim when the new version came out. I dont like triton i use 4.9 or what ever the last version be fore triton was.