What is a "current" gen MMO? They all seem to be derivative of the quest chaining that WOW popularized. GW2 is probably the most unique since it gets rid of the quest hub, but even then almost every quest is 99% kill/collect grindfest.
If anyone has continue to advance the system, I think its Blizzard. There is a nice chunk of non-kill quests and the phasing stuff makes it feel like your actions are really impacting the game world.
