The Glocks are very popular - for good reason, and the XDs are a very nice gun, but I prefer a 1911 .45, and Kimber makes several nice ones for CC.
.45 is far superior to 9mm in stopping power, but makes for more difficult CC and/or smaller capacity mags.
.45s counter the 9mm’s high capacity mags by the simple fact that 1 or 2 .45 rounds will do the job, while even a full mag of 9mm amy not be sufficient....
Me? Prejudiced in favor of .45s? uuuuhhhh......yeah I am....LOLOLOLOL
The Best gun is the one you have, and the one that you can shoot well.....always....