>>76384455 (OP)With the goal of symmetry/aesthetics in mind, once you have built a decent foundation, you should focus more on periphery muscles- delts, forearms, calves, traps, and lats
This will give you the best silhouette/proportions.
Focusing too much on powersharting movements overdevelops the torso/core. If you already have average frame genetics this can give you a shitty silhouette. If you have a godlike frame (shoulder-waist ratio, torso-limb ratio) then you can get away with some overdevelopment