I would choose the SIG, hands down, no second thoughts, in a heartbeat.
And the reason is that I've had a Browning BDA 45 (SIG P220) since 1980. That gun has been flawless. Its reliable, easy to use, accurate, and light, comparatively speaking. Alloy frame, but all metal other than the grips.
Personally, I find the frame mounted decocker to be superior to the slide mounted ones, decocker or safety. and yes, I'm right handed.
I also find the slide release to be very well positioned. And takedown of the gun for cleaning is super simple, and does NOT require pulling the trigger at any point. Lock the slide back, rotate the takedown lever 90 degrees and ease the slide off the frame. Lift out the recoil spring & guide, then the barrel and you're there...assemble in reverse order.
As to ambidextrous, since I'm not a lefty its not a concern for me, personally, though I would mention something I learned early on, "you always have all the time you need to put a safety ON" and that applies to a decocker as well. My BDA is the original P220 "European" model with the heel type magazine release, its fully ambidextrous, being "equally inaccessible to either hand"
I don't have any of the pistols you are considering, but I have shot the P226, and found it to be as good as my old P220, just in a smaller caliber.
I wouldn't worry about lack of support for the SIG pistol, even if SIG closed its doors for good tomorrow, parts and people who know how to work on them will be around for decades, assuming you actually need something done. I've got over 40 years on mine, no work has ever been done, though I have changed the recoil spring...once.
And the reason is that I've had a Browning BDA 45 (SIG P220) since 1980. That gun has been flawless. Its reliable, easy to use, accurate, and light, comparatively speaking. Alloy frame, but all metal other than the grips.
Personally, I find the frame mounted decocker to be superior to the slide mounted ones, decocker or safety. and yes, I'm right handed.
I also find the slide release to be very well positioned. And takedown of the gun for cleaning is super simple, and does NOT require pulling the trigger at any point. Lock the slide back, rotate the takedown lever 90 degrees and ease the slide off the frame. Lift out the recoil spring & guide, then the barrel and you're there...assemble in reverse order.
As to ambidextrous, since I'm not a lefty its not a concern for me, personally, though I would mention something I learned early on, "you always have all the time you need to put a safety ON" and that applies to a decocker as well. My BDA is the original P220 "European" model with the heel type magazine release, its fully ambidextrous, being "equally inaccessible to either hand"
I don't have any of the pistols you are considering, but I have shot the P226, and found it to be as good as my old P220, just in a smaller caliber.
I wouldn't worry about lack of support for the SIG pistol, even if SIG closed its doors for good tomorrow, parts and people who know how to work on them will be around for decades, assuming you actually need something done. I've got over 40 years on mine, no work has ever been done, though I have changed the recoil spring...once.