It's "throws the best pattern. You won't find a better one."
Unless you're a card shooter or trying to win a butterball at a "turkey shoot" by placing the greatest number of pellets in the smallest area, what does that statement--"the best pattern"--even mean???
For hunting purposes, I'm convinced it's in the eye of the beholder. Just like beauty.
I'm as guilty as any for once chasing numbers of pellets in a 10" circle at a certified distance of 40.00 yards during windless, warm days. And, I attribute more missed shots at close range--what used to be chip shots--to those misguided efforts to achieve the "hottest core."
Don't get me wrong. I still shoot at paper, draw circles, count holes, assess gaps, evaluate pattern evenness and distribution, calculate pellet retention rates...in 10", 20" and 30" circles.
However, I look now for more balance and evenness over a 20"+ diameter at 40 yards, as long as there are no big gaps, but I still can't tell you what's best. Moreover, I think it varies with terrain, vegetative cover and from set-up to set-up.
So...what kind of pattern gives you the most confidence and best results (dead turkeys)?