I tried the Beta for it, and honestly, after having played WoW, its game-play doesn't match up. The graphics are great, but after getting used to the free-movement world of WoW, and the fact that you can choose between PvP and PVE content, I chose WoW. (plus it annoys me to no end that you can't jump in Aion -.- not to mention that you're forced to PVP in the higher levels if I have my games straight
)
TBH, if I'd be paying a subscription fee and it was a choice between the two, I'd play WoW, but in all honesty, its just my opinion and I know a
lot of people that absolutely LOVE Aion, I just take their word for it
-Bleach