What IM client works best

[Tom Masterson]

I have been using pidgin for quite a while now but some changes to 
libpurple has made it not work with openfire which is what we use here at 
work.  I am finding problems with gajim and empathy although that may be 
me.  I am using Ubuntu 12.04 LTS.

Gajim seems to lock up my desktop on a fairly regular basis and I am not 
finding a way to read messages people send in empathy and also it is not 
showing all my contacts and I can't seem to get to the accounts stuff.

Any thoughts?
Tom