You can import saves so things affect the Dragon Age 2. By voice acted I mean like, voice acted main characters, like, your actual character is voice acted, not just pressing dialogue without a voice. and Lothering was the first city you visit after being rescued from Ostagar. The one where you find Sten and Leliana.
As for the Bioshock thing, I do agree. Gameplay really was fun in all of them, but in terms of storyline, just didn't fit completely together.