This is just me, but two figures I don't loose sleep over are BC and SD.
A high BC advantage really kicks in at extended ranges that I just don't plan on shooting game at, and SD doesn't take into account bullet construction, which IMHO counts more than simply dividing weight by diameter squared.
There's also something to be said for frontal diameter, which hardly ever gets brought up in these discussions.
Maybe now that we've moved beyond just cup and core, there are better ways to estimate potential effectiveness. Here's a pretty good article that's worth considering when it comes to the value of SD.
https://www.fieldandstream.com/guns/sectional-density-bullet-penetration-truths/