Perception of accuracy depends on a lot of factors. It isn't as simple as putting two guns in a vise and pulling the trigger ten times to see which one makes a better group from 25 yards. Some shooters like one gun some like another and it is a combination of the gun, the shooters idiosyncrasies and the shooters technical skill that will produce the given results.
If you want an accurate defensive semi-auto gun the top choices available today in no particular order are:
1911 (Kimber, Colt, Para Ordinance or Springfield) Take your pic.
Spingfield XD (One of my favorites)
Sig 229 or similar
You were not quite clear if it is for carry also or only home defense and plinking. Not that people don't carry every gun on my list, but it plays a role in deciding.
(Excluding high dollar guns which often have as much to do with pride as function, of course given your background you might like handgunning enough to justify it.) Since most everyone who gets into guns owns more than one getting a solid defensive gun isn't a bad start since we know you're not affraid of a little recoil and a large framed gun.