The story line I would say is kind of a miss on TQ. Unlike DS2, its not very involving. You spend too much time of killing monsters senselessly then, then working of the main quest and other side quests. Yeah I know this is what action rpg is all about, killing lots of monsters really fast. I think DS2 have the upper hand in terms of the storyline.
I will give TQ an 8.6 rating. Like I said the graphics are very good, sound is good (I dont know how you could tell really) and the value is excellent. The storyline effects the rating on the gameplay. Because storyline doesnt seem to be as intense as DS2 it will get a lower score.