I agree, shoot what you like, I shoot everything, as I work on a range that runs over 200 rental firearms, and I guarantee I have more rounds downrange than most folks, haveing done nothing but shoot everyday for the last few years. I've seen a lot of different guns go down in that time.
I'll never bash Glocks, I carry a 26 as a backup in the USA when I'm there, HOWEVER, to say that the only problems Glocks have occur when they are "gunsmithed" is simply ridiculous.
I've PERSONALLY seen over 2 dozen, probably over 25 G17's and G22's alone go K-boom, primarily rail guide seperations in the plastic frame, and that's just in 2 years of being on the ranges. The last Sig defensive course I was on all 3 Glocks on it went down. YES I've seen Sig's go down as well, but far, FAR more infrequently, and I've never had to send one back to the factory, where as I've been waiting over a year to get a dozen G17's fixed from the factory (I'm in Canada, it's a major pain sending stuff back to the US once it has come in, I realize it wouldn't be a problem in the US for you guys there).
Incidentaly, JTF2, our Special Forces unit in country here, uses 226's and 225's, and their armourer told me they've NEVER had a slide fracture failure, and they shoot WAY more than any Police Department per operator. Try and find me a PD armourer that will say the same about glocks. Calgary PD here has G22's going down a lot more often than they'd like.
I shot the Air Marshall qualification and while back, and passed it the first time too....with a G19 with the 3.5" trigger in it, and that was probably the best I've ever shot, with 2 thrown rounds killing my chance for a "possible". Go figure. My partner in crime with my training company here works as a private contractor right now with Triple Canopy in Baghdad, and they are all carrying G19's, and most of them are x-Delta/Seal/Marines, and could shoot whatever they want with the $$ they are getting.
Anyhow, it's the OPERATOR not the weapon IMHO, I've trained a TON with the best IDPA shooter in the world, Ernest Langdon, and he shoots everything, but mainly Sig220's and Beretta's, and I'll put him up against anyone in the world. It all comes down to getting whatever weapon you choose out of the holster quickly, getting it presented to the target, then making bullets fly and bad guys die.