.45 ACP for me as well.
Shot a nice IDPA match in NC at the Blackwater facility last summer. Some of the stages involved cherry poppers and spring-loaded steel targets. I watched MANY of my friends make solid hits with their 9mm's (mostly Glock 17's and 34's) and the targets didn't drop. I think most of them were shooting 115-gr. FMJ. I was shooting 230-gr. FMJ through my Glock 21, and every time I made at hit the target dropped.
That being said, my carry gun is a G19!
Go figure.
