Hmmm .. I prolly take some 60-70 hours on my runs. After 5 full runs, it doesn't get any shorter too. At least on Insane diff. Aw well, it can get real short if you die! =P
But I guess that some plougher playing it on easy without doing any sidequests, skipping all dialogues, etc, could finish the game a lot faster than I do.
I actually try hard to delay end game the most I can, particularly when it is a grand game like this. And I will farm a lot for exp and loot, particularly mutagens, clearing areas many times, day and night, as stuff that appears in some are very different depending on the time of the day.
After 20 runs with DA:Origins, around 100 hrs each, and over 150 vids of it on YouTube, it really does not surprise me when someone comment, on many of my vids: (and they do, believe me. Bellow is just one I copie/pasted here, there are lots of them)
LMFAOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOOO! 150+ hours invested in this game, and yet there are still scenes I haven't witnessed.
I'd expect the same with TW2, only that I'm not bothering making that many vids so soon 'cause I'm too busy playing the fraking game! Not until my 10th Insane run is done, at least!
Yes, I do have a life but I do have lots of time to play my games and I am very OCD when it comes to completionism.