It's anniversary of launch so it has to be the most iconic part of classic eq. For me that is: Guk - Froglok model for AoC
Fansy the Bard. He could shout "GO TEAM GOOD GUYS!" whenever you fired up a DZ. Honorable mention to Alliezaur and the rathe mtn sphinxes.
How about just simply: Verant (25th Anniversary Server) or Darkpawn (25th Anniversary Server) I'm a Simple Man, I don't need fancy things...