It has not so much to do with the client you are using but with the Server software we are using. We are one of the most up to date servers when it comes to EQEmu source and even have lots of Custom aa fixes but still alot are not supported yet.
This is also true for Spell Effects,not everything is supported in Emu code. Unfortunately, i don't know of a site or post which consolidates the AAs that work/are broken but maybe you can start one?

Best to ask your fellow peers in game what works and whats a waste.