How special!!! You ask and answer your own questions, and I agree you don't know what the hell you're talking about.
Which of them are the Best Calibers for concealed carry?
I agree you are totally wrong.
When it comes to concealed carry, you have to choose your gun and caliber wisely, many peoples don't understand the role of calibers, they think that gun is always the major priority in these situations.
But caliber plays a vital role while shooting as because when we are shooting we have to aim the target and if the caliber is not what you choose then your target might be miss. In many cases when people switch there caliber from .45 to .40 then approx their 25 rounds will go waste as they can't focus on their target with that caliber. So i would recommend you to always hunt for the best calibers for self-defense