Job market in academia: applied/computational math vs. pure math
Applied mathematics is looks great for research oriented schools, as it is great for connecting field like physics into calculus, it’s evidence that you are aware of the connections and potentially build on them; pure mathematics doesn’t look as good, unless the field you are looking to research in is mathematics itself, as schools in general will assume you are more focused arithmetic, rather than the actual application of your degree to your field of study.