Over the short term there may technically be no difference. However, there is a huge difference in safety factor between the hard lines and flexible lines. But over the longer term the flex lines will have to be replaced just due to mormal useage. You would not have to replace a stainless hard line ever due to normal use or rot. Usually the braided lines are used only for joining a caliper or axle that is free to move relative to the frame, steel or stainless hard lines everywhere else.

Kitz