D&D Online might be a decent MMORPG if you are looking for a more action orientated version. Grouping also seemed pretty necessary in the early stages of the game. Graphically it is top notch, and the atmosphere of the various dungeons (Or warehouse, temple, crypt...etc.) is very good. XP is gained solely by finishing quests, and there are short, medium, and long ones to do. You do not gain levels quickly.
Again, if you enjoy the more action style RPG gameplay, there is a chance this MMORPG will appeal to you.