So there's a lot of different rim brakes out there. Some are obviously sub-par (rod-actuated stirrups), but I'm not sure what the differences are between others.
More to the point: If I were designing a bike from the ground up, what would determine what kind of brake system I'd use? Why would I pick a linear pull over a center pull caliper, or a side pull caliper? Why does my road bike have one system while my hybrid another?