I played Vampire Bloodlines, and obviously Dragon Age. Actually I wonder what's the point of this thread? Does the OP think violence is good or bad? Is it supposed to be a point of criticism, that DA:O appears very violent, or does he feel it enjoyable?
As for me, I also considered Max Payne quite violent with this scene of him coming home with his family slaughtered... Also plenty of bullet time giving bullets, especially with sniper gun, (quite literally) an awesome impact. But it fit the game and I wouldn't have wanted it less than that.
Similar with DA:O. Ok, perhaps the fountains of blood when killing rats were unbelievable. I was also wondering why the Darkspawn blood was not black or much darker than normal living being's blood. Some scenes seem like a déja-vue from Kill Bill (1), but still fits the genre and presentation of the whole game. So, I'd say: Violent? Yes. The most violent ever? Hard to say, but at least in my top 10. Violence too much or overboard? Not really. Still, certainly not for minors.