In welding and brazing, the strength of the joint often surpasses that of the base materials. But because the heat used in brazing is less intense, this process does not alter most physical properties and minimizes distortion, warping and stresses in the joint area. Additionally, brazing’s lower temperatures translate to less energy requirements.
Both methods produce strong, permanent joints but it just depends on what your working with. It comes down to thickness, tube size and the type of joint. Personally a nice TIG weld looks way better.