The Blake stitching is the simplest and most common and is part of a large part of the collection of our shoes. It is also a consequence of the industrial revolution, and is that the sewing is done inside the shoe, making it impossible to make by hand.
The advantage it offers is a simpler construction than the Goodyear Welt. This process does allow to replace a sole when it is damaged, as opposed to gluing. Having fewer layers than a Goodyear Welt, it has greater flexibility.