|Rokolith Goblin Squad Member|
I think that one of the things that made WoW accessible and more fun was how alive all the characters looked in their animations. The talking, the laughing, the head shaking, everything was super smooth and well done. Having emotes may not be a number one priority, and I know the visuals are going to play second fiddle to gameplay and rightly so, but having a visually stimulating world where most importantly the characters feel alive so so key.
Also a big thing that keeps me coming back to a game is the music, GW2 is a good example besides WoW of getting both of these features well implemented.
I made a thread a while ago where I picked and choosed some things I think are good inspirations for what PFO could work from: http://paizo.com/threads/rzs2p9ps?My-collage-of-game-features#1