Tim, you've received great advice and have a good summary. Bottom line, as you mentioned, is how it fits you. No good way to fix a gun that doesn't naturally point well in your hand. Only other thing I'd add is the long-term picture: reliability, replacement parts, what-it-takes-to-keep-it-running, etc. From my experience, Glock fits the bill nicely, but even with my Glock, I've got some spare parts. I really like my XDm, but I've read too many stories and seen too many 'cheap' parts (like that stupid roll pin at the top of the slide) that cause me to not view that gun as a long-term, reliable firearm. So, I've got a bunch of spare parts for it to keep it running.

Good luck in your quest, half the fun is trying out all the available contenders!!