Of the 1911s mentioned IMO, the best overall quality, fit and finish, performance, and potential long term reliability is probably going to be the Magnum Research 1911. Two of my buddies have the .45 version and I've put both through some paces over the years.
Magnum Research builds these things like tanks with tight but not-too-tight tolerances, accurate barrels and pretty good triggers with little if any slop right out of the box. The only two things I could gripe about: one, they are bushing-less (I'm old school about the bushing thing). Two, they are all steel, so they're a bit heavy for EDC. Otherwise, at under $700, I don't think you can beat MR for sheer bang-for-your-buck. YMMV of course.