The answer is at the rental range, or in a pile of friends' guns.
Get whatever feels best in your hand, conceals as well as you need to, weighs the right amount, is sized properly, is in the caliber you want, has the capacity you need, is the color you like, fits a holster you know is good, has affordable magazines, has/lacks an accessory rail as desired, fits lights/lasers as desired, has a passive/manual safety mix you like ...
Wow, that's a LOT of factors to consider, you may have to make your own compromises.
Did I miss any features to consider?