The advice to shoot all three paid off for me in spades. I recomend you follow suit and heed these smart folks advice.
I'd been a hard core 1911 man until a friend MADE me shoot his glock (G36). I picked it up, cursed the stupid "U and dot" sight system, and then commenced to put holes into holes at 15 and 20 yards off hand. I could NOT believe what I was seeing. This "cheapo piece of Austrian tupperware" (as I used to call the Glocks), in my hands, was performing more consistently than my trusty Kimber!
The only problem I had with the G36 was the small grip (I have big Gorrilla mits for hands). Being a 1911 nut, I had plenty of .45 ACP on hand and wanted to keep my handguns consistent, so I tried out the G30 and ended up purchasing my first piece of tupperware.....
Bottom line, shoot until you find something that makes you look like you can really shoot........that's what I did and it was something I'd normally NEVER considered. Don't limit yourself to the big names, try a little of everything you can get your hands on from friends and/or acquaintances you can make at a decent local range. You may end up with something you'd already decided you'd hate!