http://www.warhammeronline.com/english/home/index.php
I believe this is going to be the end of WoW. Take a look at some Youtube videos. It looks like WoW with way more PVP. It is made by the same people who have created DAoC.
I have been following this for about 6 months now, bad news is...
Due out 1st Quarter 2008... Pushed back from 4th Quarter 2007 already. I believe it looks unreal though, Maybe I can be one of the lucky 432,050 beta applicants to get picked.
Stay away from Vanguard, its not a completed game. It sucks.
LOTRO I have heard is a one player game with no end game turned into a multiplayer game. Never tried it.
Sadly, even with how easy it is. WoW is probably still the best option out there.
Also check out Age of Conan -
http://www.warhammeronline.com/english/home/index.php If you want a more realistic game.