In general, I think most people become a "fan" of a particular handgun because they become personally attached to it, i.e. the gun shoots great for them, they have it for a long time, it's an heirloom, they really like the way it looks, etc. Some form of emotional attachment and satisfaction is established. This is generally where the idea of the "Uber Handgun" is born. I also think that magazines and the manufactures themselves are also to blame in helping promote a specific handguns "image." When you add these things together along w/ consumer excitement about a product, WHAM! A mythos is created.
Look at the Glock Annuals for instance. They create an image for their guns as reliable, accurate, and able to be run over by an SUV after it is dropped out of a helicopter and still fire a magazine full of ammo. Does this mean it is superior to other designs? Probably not, but maybe instead it should say made by Timex on the slide, "It takes a licking and keeps on ticking!" HK promotes their guns as those exclusively used by special forces and law enforcement and able to function after shooting a lodged bullet out of the bore, "The gun that can give itself an enima and still work flawlessly!" Some custom 1911 manufacturer claim that they are guranteed to group on a fly's behind at 50 yards. My point is, that we as consumers are sold a bill of goods. Do most of these manufactures products meet their claims? Probably. But there is no such thing as the perfect handgun. If there was one made it would have to be the most durable, accurate, relaiable, concealable, self-cleaning, shoots any caliber, magical handgun ever made. If there was such a thing, all the others would be obsolete instantly. Personally, I like the fact that all of these guns choices are available. It allows us to look for and choose what is best for us, allows for legends to be born or broken, and provides for a community of shooters to get together and compare their individual passion and distaste, or successess and failures w/ a particular design. In a certain light, handguns are art. Damn, I must sound like a friggin liberal. Anyway, just a few thoughts I had........