Give WoW another look with Cataclysm. Everyone plays it, so you'll have some company. It also features the most variety in beast or non-human races.
Final Fantasy 14 if you like that classic Japanese charm, but it's bugged to hell and a little disappointing right now.
City of Heroes if you value style over all else. Flashy effects and heroic feeling skills. And capes! Check out Champions online for a similar, but more in depth RPG experience.
Lord of the Rings is pretty, and has some good gameplay to it. Community is pretty nice too. Make sure you like elves though. It's free too!
Guild Wars if you're want a truly unique MMO. Great storyline, incredibly in depth skill system, and awesome customiseability on all aspects of your character. End game is truly awesome right now, with the devs making new content, free of charge, to bridge the gap between GW1 and 2. No playable beast races yet, but they'll be in GW2.