Manipulation is the art of persuading or influencing someone to act or think in a certain way. To describe someone as "more manipulating" suggests a higher level of skill and control in this area. Synonyms for this phrase could include "more strategic," "more influential," "more persuasive," "more calculating," and "more crafty." Another option might be "more conniving," which implies a sly or underhanded approach. Ultimately, the strength or weakness of a person's manipulation tactics will depend on a variety of factors, including their goals, their audience, and their own moral compass.