User blog comment:James12708/Player Choice Mass Effect and Fallout/@comment-4967682-20121218120609

Mass Effect has never had a very good choice system. Aside from the two major arcs, Tuchanka and Rannoch, your choices over the series will change, at most, a few lines of dialogue and numbers on a meter. Contrast that to the Fallout games, especially Fallout: New Vegas, where your choices have a LOT more effect, especially on a gameplay level.