I mentioned Feyriel's quest earlier, and it really shows how the cinematic cutscenes and dialogue help make quests memorable.
There were so many parts and scenes to that quest line.
Hawke walks up to Thrask speaking with Arianni and then engages Arianni in cinematic dialogue with closeups.
Hawke goes searching for Feynriel by asking his father, Vincento for clues to his whereabouts. Even the minor character Vincento gets face time with a closeup, and because of that I still remember him. I remember his voice, and the way he lies to Hawke. Mage Hawke gets special dialogue and even displays some of his/her power in this scene.
Hawke is directed to Samson, who gets face time. We see his lyrium-addled self up close. Bags under his eyes and all. Maybe he's a friend, maybe he's a sleazy good-for-nothing. Again, he is memorable even without his involvement in DA:I. IMO Samson was better in DA2 but that is neither here nor there.
Next we go to the warehouse where we are treated to the scene with the mage girl who turns abomination. Yeah, her voice acting wasn't great, but the scene was memorable as she burst into a flaming abomination.
Then we head to Darktown and face the slaver. Bring Fenris along for some added fun as he walks up to the slaver and thrusts his fist into said slaver's chest.
Then we head off to the wounded coast and free Feynriel. Rogue Hawk gets a badass knife toss option via another memorable cutscene.
All this is just part one of Feynriel's long cutscene-rich questline. *A SIDE QUEST too. Not even part of the main story.* It was awesome and memorable.
I really, really hope we can get content like this again in DA4.