We had brace heights up till 12 inch some 15 years ago.
After the axle-to-axle went back to as short as 41 inch the brace height went down to 7 inch in the fast hunting bows.
Than the leading company' s came up with shorter bows, higher brace heights and still fast shooting.
So the question is what you want.
Basicly its like this.
The higher your braceheight, the more forgiving you bow.
The closer your rest is to your pivot point, the easyer you make the arrows fly.
The shorter your bow......well...you can go on and on and on.....

Just take the bow you like most.
The faith your have in your gear is what makes the biggerst differance.