Yes, I think WoW will be the best fantasy MMO and SWTOR will be the best sci fi MMO. And they really don't feel like the same sort of game at all. WoW is very much grinding, which isn't a criticism only an observation, while SWTIR is much, much more story driven. I also think the choice factor coupled with the light side/dark side condition said choices create in characters further differentiates SWTOR from WoW.