M-9 for me.
I like the balance.
It fits my hand better, both one and two handed grips.
Without changing my grip, I can reach the safety, slide release, and mag release.
And I can cock it to get single action on my first round without changing my grip.
I can shoot the M-9 better.
CPT USAR Ret
USAMU Sniper School Oct '78
Distinguished Rifle Badge 1071