Preaching is “truth through personality” which means each preacher delivers the same message except through his person that is created by the Lord. This is why there are many styles of preaching and why each preacher is able to preach in a way that is natural to himself vs. seeking to emulate another preacher.
Once you are free to preach in your God given style then you are free to refine your delivery to become more fruitful in your delivery. You will attract some people with your style and repel others but in this way all people in the world are reached. This is why one preacher can’t reach everybody. The Lord’s plan is for the world to be reached by many preachers or righteousness.