I think some of my most important trait has to be stick skills. It takes a good amount of muscle memory, speed, and hand-eye coordination to be successful. Practicing what the buttons, analog sticks, and d-pad do will help play the game more efficiently.
Also I think memorizing key binds and mouse movement helps a lot with certain games. I feel like I work in this field best. I love to play with keyboard and mouse and I think it makes me a better player when my skills are peaked.