The Elven Dancers aren't giving any faction at all. Here is a post from pre-Revamp referencing the faction they give:
http://everquest.allakhazam.com/db/npc. ... 0154234071
A Rancar and guardian wurms are only giving +5 faction, which anecdotally are lower than they should be. Apparently killing these for an hour or two could "fix" VS faction on r99. I'm still searching for a concrete reference, but an elven dancer fix in the meantime would be nice.
Edit: Refernce to the hits on trash in general:
http://everquest.allakhazam.com/db/fact ... action=156Did a run through killing trash, and gained 50 VS faction per kill - did not do any of the names and was already max with bards, Mistmoor and scowls to Ring of Scale