I'm looking forward to ESO, it seems like a unique MMO and has features that other MMO's don't have which makes it look so good to me, I honestly can't wait. I must've filled out about 5 Beta application forms! The RvR also seems like a great feature. Other MMO's I don't like PvP because its just so terrible, but the PvP in ESO sounds like its going to be amazing.
The PvP reminds me of my favourite MMO of all time (if only it wasn't so dead anymore) Dark age of camelot. The PvP in dark age of camelot was simply unbeatable, 3 way faction wars (realms) which is why I'm looking forward to ESO because it was simply amazing and I hope they can make it just as good!