Back and pecs are my strong suits, calves the weakest by far, I have typical black man calves, high and small that are practically unresponsive to training
Small, weak calves aside, I always was naturally a fast sprinter
My quads and butt grew from my first squatting session, but everything else has been at least somewhat of a challenge to grow. Calves are still a weakness, but lower body overall grew faster than upper. Arms and shoulders grew faster than torso. Chest grew faster than back. Bis faster than tris.
After a few years of training, my torso actually began to overpower my delts and arms, and my back eventually became my best upper bodypart.
Bodybuilding genetics for me overall are average at best - probably somewhat below average. Persistence works pretty well over time though.
I had quads before doing a single squat. Lol my back responds really quickly, too. My rear delts need extra attention and my hamstrings need a few more sets than other muscle groups.
One thing that's really worked well for me for weaker body parts is training them more freq. vs than hammering them to death 1x/wk. The increase in freq plus volume increase that comes with has done wonders for me.
Also cutting down on heavy ass weight and really feeling the muscle mind connection. Once you get that numbing burn, that's when the growing happens. Just don't rip anything and warm up good.