Mar 6th 2009 8:41AM C'thun - because it was the most challenging encounter to me (and I didn't even fight him pre-nerf).
Lord Valthalak - because he was a challenging fight in 5-mans after all the farming of Strath, Scholo and Dire Maul.
Baron Rivendare - because I killed him at least 800 times (seriously).
Herod - because "Cleave, Whirlwind, Charge, Enrage - and guys, I'm not even wearing a chestplate!".
Oct 4th 2008 5:53PM With 3.0.2, there are NPCs in e.g. Stormwind, who restore mounts, keys and tabards. As well as the pet-NPC in the beta, they have no function yet.