Which ICQ client did you choose?

I used Miranda first, then SIM, but it didn't support proxies, so I had to switch back to Miranda, and then to QIP. I'm using the Hot Coffee build.
I've been using QIP Infium for about a year, on Jabber, and using its transport for ICQ.
If these miserable people start changing the protocol again (which they do quite often), Google will quickly come up with something, and there will be no need to download anything new. And QIP is also quite good).