One G17.
In my experience, it definitely deserves it's reputation as a reliable gun.
So much so that I'll never sell it.
But, it's not the gun I'd strap on if I I wanted to hit "A" zones in a competition.
In my hands, my CZ Shadow is far more accurate and just as reliable(with cleaning).
If I run over 500 rounds through my Shadow without cleaning/oiling it, it can gum up and start to misbehave.
With my glock, I honestly don't remember the last time I cleaned it. I'm sure there have been times that I went through more than a case without cleaning or oiling the G17, yet no problems(ever). And, for that reason, I'll never sell it. (Too bad I haven't been able to master the beast and get the darn glock to place my groups exactly where my eyes are looking.)