Every manufacturer has some pretty serious issues. Even worse, even though they know about them, none of the manufacturer are even adequately addressing them. Anyone who thinks this is limited to gun makers is not paying attention. I've seen the same or worse in cars, OTR trucks, computers, and clothing.
I do not go to any other manufacturer specific forum as a rule, although I still belong to the Sig Forum run by our old Para. That said, on at least one forum populated mostly by military and LE folks, the reports of serious problems with (at least some models of) Glocks and their horrible attitude toward their purchasers are pretty significant. (And on another, now gone, there was a discussion 6 years ago about the serious problems with G22/G23 models, especially with lights mounted, but even without. These issues are now pretty much accepted as gospel, although there are indications that with enough work, a Gen4 22/23 will work, and the Gen4 17/19s are broken as a result.) When LEOs are getting threatened with lawsuits if they discuss the problems they have had with Glocks on duty and in testing for consideration of issue/authorization (pretty well known) to the extent that Glock reps were trespassed from at least one agency's academy, that's a problem.
S&W is not perfect. I think S&W is trying to make too many M&Ps (and other models) to deal with demand, and cannot keep up, so QC and inspections are not getting the attention they should. There are apparently serious problems with barrels and slides being really out of spec on at least one model. I would not have a SIG on a bet, given their problems with QC over the last 8 or so years (all well known, just as with S&W and Glock). (Not to mention, I would not willingly carry a DA/SA pistol - they serve no purpose in any serious use. Period. Issuing or allowing them is dereliction per se and should result in severe discipline percussive maintenance on any command officer who can be shown to be involved.)
The XD is not a candidate for serious (any) consideration for a duty pistol due to their problems (I no longer even follow those reports) and the fact that unless things have changed, they have to go back to the mother ship for any real service, which is never going to fly.
In .40, I see only one real choice, and that is the M&P. In .45, the G21, M&P, or HK45. In 9? HK P30 seems to be the only pistol running out of the box every time. If one looks at the hard/serious use folks who have written up their experiences, guys who shoot 1000+ rounds a week in training/have prevailed in gunfights/teach others for those settings - these are the trends and results to be seen.