Shit.
Well I guess an mmo with decent action combat but less grind. Would something like archeage fit? Never gave age of wushu a chance either.
I recommend avoiding
ArcheAge (it's not action combat anyway), since it's made to rip people off.
Age of Wushu isn't really action combat as well, but it does have some sort of active blocking and a rock/paper/scissors system, so it's a bit more actiony than a standard tab target MMO.
DC Universe Online is pretty decent and has an actiony combat, at least it used to when I last played it (I heard they changed the combat some). It didn't feel grindy at all as there's quite some story missions. There's also
Dragon Nest that's being praised for having nice action combat, but I seriously disliked the chibi anime characters and the fact that the game is mostly instanced, making it hardly an MMO. In that sense,
Vindictus is very similar, but yet again, not really an MMO. I'd say there really isn't that many (if any) good games in regards to action combat MMO.
I'm slightly excited about
Black Desert, but it's too early to tell how the game will turn out, only being in Korean Open Beta atm. I should also mention that it'll probably be somewhat grindy, considering the majority of XP comes from grinding mobs and not quests, at least it's like that in Korean version.