I'm a glock guy for very specific reasons that I recognize won't fit others, so I'm not in the least insulted (But, if I truly had my way with work and the world, I'd go M&P 9mm or have Glocks with metal mags).
The truth is, true skill means placing a round where you want with whatever you're holding. Good attitude makes a good shooter, not the gun.
And, in the free world of owning what's legal that you can afford, go with whatever tickles your fancy. Any other opinion will have an element of vanity.
Did I already say I'm a glock guy?