Originally Posted by skrapy
I want your opinion. And if you carry one or have carryed both witch was best for you
I own both, and I prefer to carry and shoot the 27. It's what I had first, and I am much more comfortable with it. Your hand size will probably differ from mine, so you may not have the same results. Find a rental range or friends that have them and try them out.
As a side note, my luck with using the 23 magazines in the 27 has been terrible. It's me. I know it is, but that doesn't mean others won't have the same problem. I gave it three trips to the range firing nothing but that combo, and I just can't hit. A magazine sleeve has been suggested, and my LGS has one on order for me. Maybe that will help.