IMHO there are way too many sensible carry guns. I carry a Glock 19, but that because I had it already. Kimber, Kel-tec, S&W, Sig, Ruger...etc all have good weapons. Best bet is to try 'em out, hold them, shoot them...maybe look into holster options (I prefered sidearmor for the Glock), accessories and other people's opinions. Evaluate weight, size...etc
I know some folks buy 2-3 guns before getting right. Personally, I can't afford those kind of mistakes so I'd shop a good 3-4 weeks before finalizing my decision.
Since I started carrying and shooting more. I found 3-4 other hand guns I'd use for concealment any day. My Glock, I like it, some hate it, some love it. Just gotta figure it out for yourself.
My '03 Sold.