LOL, thanks for the laugh.
I want a fighter not to get knocked down and get up wobbly, in the first place. Your personally definition of chinny is amusing.
Considering that is 1 knockdown vs 3? I would call it, 'less chinny'
It's obvious you've never boxed a day in your life.
The only way to never get knocked down is to never get hit in the first place. If hit with the right shot at the right place at the right time, everybody goes down. The human body has limitations. If I strike you in the head full blast with a baseball bat, you're going down. And some boxers punch just as hard.
When judging if somebody has a strong chin ("strong" being above average, not indestructible), 3 criterias have to be considered:
1. Did he get hit?
If somebody never gets hit with critical shots, it doesn't mean he has a strong chin; it just means he has a good defense. Note that some people who appear getting hit actually managed to roll with the punch.
2. How did he react after getting hit?
Not every knock down is identical. We take to take a close look at how the person went down, how conscious he was afterward, how fast he got up and how he fought for the rest of the fight.
3. How would most people react in the same situation?
Knowledge of other fighters' career is needed here. For instance, we know Tyson Fury has a strong chin because most people who eat a hard shot from Wilder are done but he wasn't. Not only did Fury survive but he went back to dominating the fight, just like Beterbiev did against Gvozdyk.