I have yet to find a gun that does all the things I consider as important in a carry gun as well as the Glock 17 or 19. I find Sig's to be a bit more accurate, but they are heavier. The Ruger P series pistols are reliable but they are heavy and the earlier models sit in your hand like a brick. The 1911 has a history and are nice guns, but they are heavy and have a manual safety to have to manipulate under stress. The story goes on and on.
While the Glock is by no means special to me, nor are they pretty, nor do I especially like the direction the company has gone lately, I find the 17 and 19 the best pistols for my needs. They are accurate enough, super reliable, lightweight, have high visibility sights, are durable both in finish and mechanics and have a gazillion accessories made for them. Again, I can name several pistols that do certain things better than the Glock. But none of them offer all the features and performance I demand. Therefore the Glock 17 is what I usually carry now and I will do so until something else comes along I like better. So far nothing has. The Glock is just made the way I would build a practical pistol for carry and defensive purposes. Simple and reliable. Of course that's just me and for others it may not be suitable at all. But as many Glocks as there are out there, many other folks must share my same beliefs when it comes to pistols.
-Charging Handle