It’s immensely gratifying to see how they’ve settled into their roles as partnered consulting detectives. They are no longer feeling out their places in respect to one another; they complement each other effortlessly (like when Holmes chases a suspect directly into Watson’s surprise club attack, or when Watson takes Holmes’s unlikely improvisation in stride).
Holmes is the more experienced detective, so it makes sense that he takes a leading role in the investigations, but it’s clear that the writing team have taken care to keep his interactions with Watson equal. Watson is showing off her deductive skills ever more impressively. And when they are not working a case, Watson subtly but tangibly takes a dominant role. It would have been so easy, and so lazy, to put Holmes in the spotlight and keep Watson orbiting around him. I am grateful that Elementary has never fallen into that particular trap.