One other consideration is to pay attention to your colleagues. Sometimes more specific fields have conventions, and it's probably a good idea to follow them. For example, physicists universally* write a cursive v, not the shape preferred by the article author. You should do that too, if you want to communicate with physicists.

(*At least in my experience as a US almost-PhD in physics. And yes, it does help if you have to, say, calculate the velocity of a neutrino beam....)