While there are many great choices, I prefer the Colt New Agent or Defender. They feel great, and in part, I think it has to do with the high cut on the front strap...which seems to help me get more of a grip on the pistol. They are light and super concealable.
The Glock 30sf and the 36 are good too if you shoot factory ammo. I had a G36 and it choked on my reloads all the time and when it didn't choke the brass was consistantly dented due to the poorly supported chamber. The same reloads run through my New Agent like a sewing machine (and so does everything else).
I've had Kimbers in the past (all series I) and they were all excellent. Really there are many, many marvelous options. Good luck.