OK, here's the breakdown. The Order of the Holy Flame was, if I'm not mistaking the first clan on the forum. There are very few original members left. You can tell an OHF member by their screen names. They all have OHF after their names. OHF is kind of an elitist organization, mostly due to the fact that most of the members are Ancients. The Laughing Hyenas or LH is a clan of bards. You must be a bard or an entertainer to join. The LH clan is second in size only to HADB. Recently an aliance formed between LH and OHF, and that has been the subject of much controversy. They allied to bolster their ranks in fear of HADB.
I certainly don't want to tell what to do and what clan is best for you. I don't think anyone can do that. All I can tell you is that the clan HADB is one big happy loving family. We have Evil Overlords mingling with Tiax and his minions, we have bi-weekly fluffy hunting expeditions...The fun never ends. I would like to be the first to extend a warm invitation to join our ranks. Do the right thing for yourself and the people who care about you. Join clan HADB.
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"The object of war is not to die for your country but to make the other bastard die for his."
-General George Patton (1885-1945)
Member of CLAN HADB