Hoss,
GREAT info. Love the diagrams.
In answer to the OP, the most frequent shot of the two mentioned, has DEFINITELY been the liver, for me, though I have hit several in the shoulder "girdle", scapular crest, scapula, and humerus. Some with good results, some bad.
But ALL of the deer I hit in the liver died. I did not recover all, but they all died.
Your question wanted to know which is most common of the ones I made, and which I preferred.
I definitely prefer the liver. I can find a liver hit deer, most of the time. As long as dogs, people, or coyotes don't push it.
We refer to liver hit deer as gut shot. Because most of the time, the arrow will also pass through stomach, lung, or intestines, or a combination of these as well as the liver. Though some elevated shots make it possible to hit liver only, it is rare.
Liver shot deer can die VERY quickly, or take several hours to die. It simply depends on luck and wether your head sliced a major artery on the path.
I have seen stomach hit deer die within seconds of pass through. But then, the arrow passed through the pyloric artery within the stomach.
I have also seen liver hit deer die within seconds of the shot. Again, major artery slicing involved.
I have also seen butt shot deer fall in sight. But the femoral artery or aorta was cut.
And deer hit too far back and high, just in front of hips (arrow smells like P-P) have fallen over in sight. This is a kidney shot, very deadly but too small a target.
Hard, thick, bony areas and mature deer and arrows do not mix well at all. Like Radar said. Avoid the shoulder.
And Hoss, personally for me, I do not like it when I shoot where you are suggesting and the deer reacts to the twang of the string. That drop has put many arrows smack in that leg bone. (one time I will never forget, that leg was attatched to a 130 class buck) . I shoot BEHIND the crease and angle a tad forward.