Firearms selection is something that's hard to give a complete picture of in a Forum string. Sort of like asking what the best car is.
Needless to say, you've gotten some great feedback . . . you can't really go wrong with any of the pistols that have been suggested.
By trade, I'm a Firearms Instructor/Armorer. I'm factory trained to work on Colt, Beretta, Glock, Heckler & Kock, Ruger, Sig and Smith & Wesson firearms . . . any of which make quality products (some better then others in my opinion).
The best advice I can give you echoes some you've already gotten. Get what fits you.
Key things to check are:
Low bore axis. The lower the centerline of the barrel is to your grip, the lower the muzzle flip will be. (What most people mistakenly call "recoil")
The shorter the trigger reset, the faster your follow up shots will be. Also the shorter the reset, the more likely you are to get more accurate follow up shots.
To check trigger reset, assure the pistol is unloaded, dry fire the pistol and hold the trigger to the rear. <u>Holding the trigger to the rear</u> (simulating proper trigger follow through), cycle the slide. Now, let the trigger go forward until it resets (aka you can fire again). You'll hear an audible "click". The shorter the reset, the better. (On some pistols there is a "false" reset click, make sure your seeing the real deal (Keltec P32s come to mind).
Make sure you can reach the trigger. Simply place the pistol in your hand and align the pistol to your forearm. It should be a straight line. <u>Now</u>, move your finger to the trigger. Can you reach the trigger? (first pad with single actions and first crease with Double actions) Personally, I have medium to smaller hands, and can tell you that there are some designs that I can not use
properly. Not my fault . . . not the guns fault. I choose designs that I can grip properly and don't have to "make due with".
Note that these tests can be done in a gun store, without firing a shot.
As hard as this sounds to do, let price be one of the last things to make your decision. I can sum this up by asking "How much is your life worth?" Remember, your looking for <u>a piece of life saving gear</u>, not a place to scrimp a few dollars on.
Let us know what you decide
John